Sheet of Drawings of the Scheutz Difference Engine

When the Scheutz difference engine was shipped to the Dudley Observatory in Albany, New York, in 1857, all the instructions provided for its use were this set of drawings and a letter explaining the procedure for converting the machine from operation in one number system to another.
The frail tan paper sheet has a white cloth backing. On the sheet are 14 drawings labeled Fig. 1 through Figure 14. The figures are similar to but not identical with those in the final specifications for British Patent A.D. 1854, No. 2214, as reproduced in Merzbach. The numbering is somewhat different.
For a related object, see the Scheutz difference engine, MA*323659.
Merzbach, Uta C., Georg Scheutz and the First Printing Calculator, Washington, D.C.: Smithsonian Institution Press, 1977.
Currently not on view
Currently not on view
Object Name
drawings, set
date made
ca 1857
Georg and Edvard Scheutz
Physical Description
paper (overall material)
cloth (backing material)
overall: 26 in x 16 5/8 in; 66.04 cm x 42.2275 cm
place made
Sverige: Stockholm, Stockholm
ID Number
accession number
catalog number
Science & Mathematics
Calculating Machines
See more items in
Medicine and Science: Mathematics
Calculating Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Adele and Erwin Tomash
Additional Media

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