Millionaire Calculating Machine

This is the mechanism for a direct multiplication, lever-set, manual non-printing Millionaire calculating machine. It includes a metal base, an iron frame for the base, and part of the carriage and the mechanism for entering numbers (but only part). Also present are a component used in direct multiplication, and two cranks on their shafts. The parts of the machine are marked with different numbers. The machine has no case or lid.
Stamped on the iron frame near the right front corner is the serial number: 4154. A mark painted on the carriage reads: 27-80. The number “27-80” indicates that the machine came from the collection of New York teacher and historian of mathematics L. Leland Locke (see accession 155183 and non-accession 1983.3003). Other parts of the machine may well be in non-accession 1983.3003.
According to the estimates of Daniel Lewin, a Millionaire calculating machine with serial number 4200 was made in 1915. Hence the rough date of 1914 is assigned to this object.
Daniel Lewin, "Die Entwicklungsgeschichte der Rechenmaschinen der Firma H.W. Egli bis 1931" Typenkorb, Nr. 48 and 49, 1992.
Currently not on view
Object Name
calculating machine
date made
ca 1914
Egli, Hans W.
Physical Description
steel (overall material)
brass (overall material)
iron (overall material)
overall: 16.2 cm x 54.5 cm x 28.5 cm; 6 3/8 in x 21 15/32 in x 11 7/32 in
place made
Schweiz: Zürich, Zurich
ID Number
catalog number
maker number
accession number
Science & Mathematics
Calculating Machines
Mathematical Association of America Objects
See more items in
Medicine and Science: Mathematics
Mathematical Association of America Objects
Calculating Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Additional Media

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.