Object Details
distributor
Harrison Home Products Corporation
maker
Addiator G.m.b.H.
Description
This metal notched band adder has a metal stylus. The front of the instrument is painted green, the back, black. One can enter numbers up to six digits long. The clearing bar is at the top. The case is clear plastic. For instructions, see 1988.0807.07.
The firm of Carl Keubler produced adders under the name Addiator in Berlin (later West Berlin) from 1920 until the 1980s. This is one of three versions of the Addiator in the Smithsonian collections. It was given to the Museum by the machinist and museum specialist George A. Norton, Jr. Norton used the device to do routine addition, subtraction, and multiplication until he acquired an electronic calculator.
Reference: Martin Reese, Historische Buerowelt, 43 (September 1995).
Location
Currently not on view
Credit Line
Gift of George A. Norton, Jr.
date made
ca 1955
ID Number
1988.0807.04
accession number
1988.0807
catalog number
1988.0807.04
Object Name
adder
Physical Description
metal (overall material)
plastic (overall material)
Measurements
overall: .6 cm x 5.5 cm x 17 cm; 1/4 in x 2 5/32 in x 6 11/16 in
place made
Germany: Berlin, Berlin
place distributed
United States: New Jersey, Harrison
See more items in
Medicine and Science: Mathematics
Adder
Science & Mathematics
Data Source
National Museum of American History
Subject
Mathematics
Link to Original Record
Record ID
nmah_690270