pictures

Amigo (1925)

Martin (Dtsch), page 379 - 380 & 389

"In both size and shape, this machine closely resembles the Scribola, illustrated in figure 286 (32 X 9 X 7 cm, 2.5 kg), but instead of a chain drive it has ten adding keys. It prints both individual items and totals on 58-mm wide paper. There is a lever, attached on the right, that is used to add and print the items that have been entered. The totals are printed when the left lever is moved-it is not necessary to enter them again. It has a single-color ribbon.

Capacity: eleven-place setup mechanism, twelve-place result mechanism.

The price of the machine is 400 marks. Manufacturer: Amigo Addiermaschinen Gesellschaft, 11 Müillerstrasse, Stuttgart-Gaisburg."

principle	chain adder
capacity	11 (w/o cr) x x 12
input	10 keyboard
prod. years	1925 - ca. 1928
mach. built	few
features	1 species, printing
dimensions	11 x 36 x 10 cm
weight	4 kg
known s/n	157 - 377

	for bigger and more pictures, click on the picture
		source: R.Meier

Japy (1925)

manufacturer: Japy Frères, Beaucourt, France

Type 7

principle	pin wheel
capacity	7 (w/o cr) x 5 (w tc) x 10
input	cursors, rotating
prod. years	1925
mach. built
features
dimensions	31 x 17 x 12.5 cm
weight	5 kg
known s/n	60.001

	for bigger and more pictures, click on the picture
		source: HJ.Denker

Melitta (1925)

Martin (US), page 355 - 356

Martin (Dtsch), page 380

"This is a miniature pinwheel machine with continuous tens-carry in the revolution counter. The shift from addition to subtraction occurs automatically when the crank is turned in the opposite direction. Manufacturer: Mercedes Bureaumaschinenwerke, Charlottenburg 2, Berliner Strasse 153."

Melitta machines were manufactured by the Mercedes Büromaschinen-Werke, Zella-Mehlis, from 1924 on.

In 1926/27 production was turned over to the Walther Werke, also Zella-Mehlis. Identical machines were sold as Melitta and Walther by both companies.

Melitta machines were also marketed by other companies under their brand, like Stolzenberg.

After World-War II, Melitta models were manufactured and sold independent from Walther (see below).

Literature and links:

Reese,M.: Neue Blicke auf alte Maschinen (2002) , pages 87 ff. (IFHB)

Ur-Melitta

principle	pinwheel
capacity	9 (w/o cr) x 8 (w/o tc) x 13
input	cursors, rotating
prod. years	1924
mach. built
features	spring-loaded carriage
dimensions
weight
known s/n	157

	for bigger and more pictures, click on the picture
		source: D.Bölter

Melitta T

restoration of an experimental model

Literature and links:

D.Bölter: Melitta T & documentation

Museum in der Beschußanstalt Zella-Mehlis

	principle	pinwheel
	capacity	9 (w/o cr) x 8 (w/o tc) x 13
	input	full keyboard
	prod. years	1924
	mach. built	1
	features
	dimensions
	weight
	known s/n	12

		for bigger and more pictures, click on the picture

source: D.Bölter

Melitta

	principle	pinwheel
	capacity	9 (w/o cr) x 8 (w/o tc) x 13
	input	cursors, rotating
	prod. years	1925 - ?
	mach. built
	features	spring-loaded carriage identical to Walther 1
	dimensions	29 x 13 x 10 cm
	weight	4.5 kg
	known s/n	36, 1.315, 1.497, 2.432, 2.703

		for bigger and more pictures, click on the picture

source: D.Bölter

Melitta EI 16

manufacturer: Fortuna Werk, Suhl/Thüringen, DDR

	principle	pinwheel
	capacity	10 (w cr) x 8 (w tc) x 16
	input	cursors, rotating
	prod. years
	mach. built
	features	electric identical to Walther EMKD
	dimensions
	weight
	known s/n	100,255

		for bigger and more pictures, click on the picture

source: R.Geisler

Melitta RK

	principle	pinwheel
	capacity	6 x 5 x 10
	input	cursors, rotating
	production years	ca. 1933 - 1938
	machines built
	features
		identical to Walther RK
	known s/n	11.661


		for bigger and more pictures, click on the picture

source: S.Wolff

Melitta RMK

	principle	pinwheel
	capacity	10 x 8 x 13
	input	cursors, rotating
	production years	ca. 1929 - 1938
	machines built
	features
		identical to Walther RMK
	known s/n	50.383


		for bigger and more pictures, click on the picture

source: HJ.Denker

Melitta III / 16

manufacturer: Fortuna Werk, Suhl/Thüringen, DDR

	principle	pinwheel
	capacity	10 (w cr) x 8 (w tc) x 16
	input	cursors, rotating
	prod. years	ca. 1950
	mach. built
	features	identical to Walther RMKZ
	dimensions	29 x 14 x 14 cm
	weight	3 kg
	known s/n	64,037

		for bigger and more pictures, click on the picture

source: H.Ansorge

Melitta IV / 16

manufacturer: Fortuna Werk, Suhl/Thüringen, DDR

	principle	pinwheel
	capacity	10 (w cr) x 8 (w tc) x 16
	input	cursors, rotating
	prod. years	ca. 1950
	mach. built
	features	spring-loaded carriage
	dimensions	30 x 12 x 13 cm
	weight	4 kg
	known s/n	70,882 , 73,601

		for bigger and more pictures, click on the picture

source: R.Fedeli

Melitta VI / 16

manufacturer: VEB Ernst Thälmann Werk, Suhl/Thüringen, DDR

	principle	pinwheel
	capacity	10 (w cr) x 8 (w tc) x 16
	input	cursors, non-rotating
	prod. years	ca. 1955 - 1960
	mach. built
	features	spring-loaded carriage
	dimensions	33 x 14 x 16 cm
	weight	4.5 kg
	known s/n	126 050, 126 789

		for bigger and more pictures, click on the picture

source: H.Schneemann

Melitta VII / 16

manufacturer: VEB Fortuna Werk, Suhl/Thüringen, DDR

	principle	pinwheel
	capacity	10 x 8 x 16
	input	cursors, non-rotating
	production years	ca. 1955 - 1960
	machines built
	features	spring-loaded carriage
		back transfer

	known s/n	92.429, 107,503

		for bigger and more pictures, click on the picture

source: HJ.Denker

Melitta Junior

	principle	pinwheel
	capacity	6 x 6 x 10
	input	cursors
	production years
	machines built
	features

	known s/n


		for bigger and more pictures, click on the picture

source: HJ.Denker

Mercedes (1925)

Martin (US), page 358

Martin (Dtsch), page 383

"This is a nine-key adding machine that also has eight tabulating keys. Again, this machine was never widely distributed and has not been manufactured for

a number of years. Manufacturer: Mercedes Bureaumaschinenwerke, Zella-Mehlis"

A 51

principle	tooth rack
capacity	10 (w cr) x x 11
input	10 keyboard
prod. years	1938 - 1973
mach. built
features	2 species, printing
dimensions	19 x 35 x 19 cm
weight	6.5 kg
known s/n

	for bigger and more pictures, click on the picture
		source: K.Badur

Addac (1925)

Martin (Dtsch), page 385

"Addac was a 8 digit adding- and subtraction-machine, manufactured by Addac Co., Grand Rapids, MI"

	principle	tooth segments
	capacity	8 and 9
	input	finger pads
	production years	1925 - 1927
	machines built	????
	features	subtraction by complementary
		digits

	known s/n	1.369, 3.133, 5.736

		for bigger and more pictures, click on the picture

source: W.Szrek

Spezial (1925)

Manufacturer: Paul Brüning, Berlin, Germany

	principle	tooth disks
	capacity	7 (w/o) x x 7
	input	finger pads
	prod. years	from 1925
	mach. built
	features	2 species, subtraction by use of complement numbers
	dimensions	13 x 15 x 13 cm
	weight	2 kg
	known s/n

		for bigger and more pictures, click on the picture

source: R.Chirico

Mindling Vest Pocket Adding Machine (1926)

Manufacturer: G.N.Mindling, Pittsburgh, USA

based on Stephenson's adder

principle	disk adder
capacity	2
input	stylus
prod. years	from 1926
mach. built
features	column adder
dimensions	8.3 x 4.8 cm
weight
known s/n
price	$1.85 (1926)
	for bigger and more pictures, click on the picture
		source: L.Rupp

Facta (1927)

Martin (Dtsch), page 446

originally introduced 1925 under the name Productor, manufacturer: Productor-Rechenmaschinenwerke, Wien

1927 produced as Facta by Facta-Rechenmaschinenwerk Leo Borger, Wien

principle	pin wheel
capacity	8 (w/o cr) x 5 (w/o tc) x 10
input	cursor, rotating
prod. years	1927
mach. built
features
dimensions	17 x 10 x 9 cm
weight	1.3 kg
known s/n	4.991
price	RM 145,- (1927)
	for bigger and more pictures, click on the picture
		source: F.Pehmer

Resulta (1927)

Martin (Dtsch), page 448

Manufacturer: Paul Brüning, Berlin, Germany

originally introduced under the name Minerva

Literature and links:

Blümich, Wolf-G.: "Kleinaddiermaschinen Resulta" in: Histor.Bürowelt Nr. 69 (2004) (IFHB)

updated article on-line

model BS7

	principle	tooth segment
	capacity	7 x x 7
	input	stylus
	prod. years	1936 - 1957
	mach. built
	features	2 species, input cntrl display
	dimensions	8.5 x 15 x 11 cm
	weight	1.5 kg
	known s/n	no s/n, engraved mmyy of production

		for bigger and more pictures, click on the picture

source: HJ.Denker

model 7 / E7

	principle	tooth segment
	capacity	7 x x 7
	input	stylus
	prod. years	1957 - 1969
	mach. built
	features	2 species, input cntrl display blind in result display
	dimensions	8.5 x 15 x 11 cm
	weight	1.5 kg
	known s/n	no s/n, engraved mmyy of production

		for bigger and more pictures, click on the picture

source: H.Schneemann

model P7 / P9

	principle	tooth segment
	capacity	7 x x 7 or 9 x x 9
	input	stylus
	prod. years	1957 - 1969
	mach. built
	features	2 species, as model 7, integrated printer
	dimensions	16 x 26 x 14 cm
	weight	4 kg
	known s/n	no s/n, engraved mmyy of production

		for bigger and more pictures, click on the picture

source: B.Hensel

Express (1928)

Martin (Dtsch), page 412

"The Express was a 7 digit adding machine with direct finger input, weight 3.5 kg, automatic tenth carriage, zeroing with butterfly screws. Manufacturer was Otto Rübner, Berlin, however since a couple of years the machine is not produced anymore"

	principle
	capacity	7 or 8
	input	finger pads
	prod. years	1928
	mach. built
	features	adding machine
	dimensions
	weight	3.5 kg
	known s/n

		for bigger and more pictures, click on the picture

source: ©Tekniska museet, Stockholm

Produx (1928)

Manufacturer: Meuter & Sohn, Berlin, later Hamburg (D)

Otto Meuter started 1918 with the invention of an add/subtract slider, which was marketed under the names "Addiator", "Pro Calculo" and "Correntator". In 1928 he founded his own company and sold the add/subtract slider under the name "Produx".

From 1953 a 3 species machine (division was not possible resp. very cumbersome) was manufactured and marketed under the name "Multator" (in France "Multical"), one model had the name "a x b x c".

Literature and links:

Reese, M.: "Die Firma Otto Meuter & Sohn: Rechenapparate und Rechenmaschinen für den kleinen Mann" in: Histor.Bürowelt Nr. 43 (1995), pages 19 - 31 (IFHB)

Reese,M.: Neue Blicke auf alte Maschinen (2002) , pages 112 - 117 (IFHB)

source: M.Reese

Produx Multator I

	principle	adapting segment
	capacity	10 (w/o cr) x 5 (w/o tc) x 10
	input	cursors
	prod. years	1954
	mach. built	ca. 10.000
	features
	dimensions	24 x 14 x 8 cm
	weight
	known s/n	ca. 500 - 10.000

		for bigger and more pictures, click on the picture

source: A.Devaux

Produx Multator II

	principle	adapting segment
	capacity	10 (w cr) x 5 (w/o tc) x 10
	input	cursors
	prod. years	1955 - 1966
	mach. built
	features	division by use of complement numbers, back transfer
	dimensions	26 x 17 x 9 cm
	weight	2 kg
	known s/n	ca.10 000 - 46 000

		for bigger and more pictures, click on the picture

source: M.Reese

Produx a x b x c

	principle	adapting segment
	capacity	10 (w/o cr) x 5 (w/o tc) x 10
	input	cursors
	prod. years	1962 - 1970
	mach. built
	features	3 species, back transfer
	dimensions	26 x 17 x 9 cm
	weight	2 kg
	known s/n	ca. 25.000 - (3) 68.000

		for bigger and more pictures, click on the picture

source: HJ.Denker

Produx Multator 4

	principle	adapting segment
	capacity	10 (w/o cr) x 5 (w/o tc) x 10
	input	cursors
	prod. years	1963 - 1969
	mach. built
	features	true division
	dimensions	26 x 17 x 9 cm
	weight	2 kg
	known s/n	ca. 40.000 - (4) 63.000

		for bigger and more pictures, click on the picture

source: M.Reese

Summira X

manufacturer: O.Meuter & Sohn

distribution: Summira KG, Roisdorf/Bonn (Summira)

	principle	adapting segment
	capacity	10 x 5 x 10
	input	cursors, non-rotating
	production years	around 1955
	machines built
	features	3 species


	known s/n	33.685

		for bigger and more pictures, click on the picture

source: HJ.Denker

EOS (1929)

Martin (Dtsch), page 424

In 1929 the Hannovera company was in financial trouble. The Swiss company "EOS-Genossenschaft für Fabrikation und Vertrieb von Rechenmaschinen" bought parts and partly or complete assembled Hannovera CK and sold them under the name EOS.

(2MB) M.Reese: Hannovera und EOS from "Neue Blicke auf alte Maschinen" (in German)

(permission from the author)

	principle	adapting segment
	capacity	9 x 8 x 13
	production years	1929
	machines built	ca. 800
	features	no tenth carriage in counter register
	s/n	20.001 - ca. 20.800




		for bigger and more pictures, click on the picture

source: A.Pohl

Remington-Rand (1929)

Martin (Dtsch), pages 447 - 448

R50

principle	pin wheel
capacity	10 x 8 x 13, 10 x 8 x 16
input	cursors, rotating
prod. years	1950 - 1954
mach. built
features	identical to Walther WR16
dimensions
weight
known s/n	20.019

	for bigger and more pictures, click on the picture
		source: F.Haeghens

R54

principle	pin wheel
capacity	10 x 8 x 16
input	cursors, non-rotating
production years	1952 - 1957
machines built
features	identical to Walther WSR 16
	back transfer
known s/n	21.433, 22.314

	for bigger and more pictures, click on the picture
		source: HJ.Denker

Calculator DX-94

principle	adding segments
capacity	10 x x 10
input	10 keyboard
prod. years	1958 - 1960
mach. built
features	electric, printing, autom. division, semi-autom. multipli- cation
dimensions	24 x 45 x 21 cm
weight	13 kg
known s/n	N 1.441.813
price	DM 1.590,- (1959)
	for bigger and more pictures, click on the picture
		source: E.Anthes

Remington Portable

(Brennan, Monarch, Torpedo)

"The today known as Remington Portable writing 10-key adding machine was issued to the market 1929 under the name Brennan by the Brennan Adding Machine Co., 122, South Michigan Avenue, Chicago. In 1932 the production rights were turned over to the Remington Typewriter Co."

principle	adding machine
capacity	9
input	10 keyboard
production years	1929 - 1932
machines built
features
known s/n


	for bigger and more pictures, click on the picture
		source: Clyde M. Desouches

Stima (1930)

Martin (Dtsch), page 454

"Small adding machine in the form of the known machines with catch tenth carriage, but with automatic tenth carriage up to the last digit. Manufacturer: Albert Steinmann, La-Chaux-De-Fonds, Suisse."

principle	chain adder
capacity	various
input	stylus
production years	1930 - ???
machines built
features
known s/n


	for bigger and more pictures, click on the picture
		source: J.Goldman

Stima Universal 4

principle
capacity	9 (w cr) x 9 x 18
input	full keyboard
prod. years	1938 - 1948
mach. built
features
dimensions
weight
known s/n	51.857

	for bigger and more pictures, click on the picture
		permission granted

Stima CM III

principle	tooth rack
capacity	9 x x 9
input	stylus
prod. years	ca. 1945 - 1955
mach. built
features
dimensions	15 x 20 x 13 cm
weight	2 kg
known s/n	14.362

	for bigger and more pictures, click on the picture
		source: E.Anthes

Leningrad (1930)

Manufacturer: N.K.T.P., UdSSR

Volks-Kommissariat Schwer-Produktion, Fabrik Nr. 2, UdSSR

principle	pinwheel
capacity	9 x 8 x 13
input	cursors, rotating
production years	from 1930
machines built
features

known s/n	6.334

	for bigger and more pictures, click on the picture
		source: HJ.Denker

Högfors (1930)

not well known machine from Sweden, similar to Addac. Sales by AB Affärsystem.

principle	tooth disks
capacity	7 (w/o cr) x x 7
input	finger pads
prod. years	ca. 1930
mach. built
features	2 species machine, subtraction by complementary digits
dimensions	20 x 13 x 13
weight
known s/n	47.427, 471.023

	for bigger and more pictures, click on the picture
		source: R.Rehbein

Mauser-Addi (1931)

Martin (Dtsch), page 431

manufacturer: Mauser-Werke AG, Oberndorf (Neckar), D

literature: E.Anthes: Dr. Ing. Helmut Gelling - Konstrukteur von Rechenmaschinen, in: Historische Bürowelt 41 (1995), S. 21 - 28

model HUE

principle	adding segments
capacity	10 x x 11
input	10 keyboard
prod. years	starting 1931
mach. built
features	2 species machine, electric
dimensions	24 x 49 x 28 cm
weight	16 kg
known s/n	10.177, 11.839, 17.012

	for bigger and more pictures, click on the picture
		source: K.Schildbach

Plus (1931)

Martin (Dtsch), page 445

Pettometer, Plus-Minor

"The today's Plus was called originally Pettometer and was manufactured by Petters Ltd. . The manufacturing rights were transferred later to the Bell Punch CO, Ltd., a 1878 created company, which manufactures the machine in its factory in Uxbridge. The smaller model is called Plus-Minor."

	principle	adding machine
	capacity	5 or 9
	input	half keyboard
	production years
	machines built
	features	also models for British currency
	known s/n


		for bigger and more pictures, click on the picture

source: B.Franke

Regina (1932)

manufacturer: Hinrich Holz, Oberbilstein im Bergischen Land

Regina A

	principle	tooth disks
	capacity	8 (w/o cr) x x 8
	input	finger pads
	prod. years	since 1932
	mach. built
	features	adding machine
	dimensions	17 x 19 x 16
	weight	2.5 kg
	known s/n

		for bigger and more pictures, click on the picture

source: A.Jeanroy

last updated: 03-Sep-10