Dalton Model 181-4 Adding Machine
date: label: date made
content: 1925
name: label: maker
content: Dalton Adding Machine Company
notes: label: Description
content: This gray-green manually operated ten-key printing adding machine has two rows of white plastic number keys, including complementary numbers for subtraction. There are multiply and non-add keys on the left, and backspace and subtract keys on the right.
label: Description
content: The multiply key acts like a repeat key - multiplication is strictly by repeated addition. The place indicator is above the keyboard, with a metal correction key to the left of it. Above and to the right are release, total, and subtotal keys. The printing mechanism and “4”” carriage are toward the back. The ribbon is black. The non-print key is next to the ribbon.
label: Description
content: There is a place for a 2-1/2” paper tape, but no paper tape. Above the platen is a serrated edge to tear the paper. A zero value appears before a total. The metal crank with wooden handle is on the right. There are metal feet, but no evidence of any rubber padding.
label: Description
content: The machine is marked on the front: Dalton (/) ADDING, (/) LISTING AND (/) CALCULATING MACHINE. The serial number below the crank is: NO170913.
label: Description
content: This example came to the Smithsonian from Immaculata School in Washington, D. C.
label: Description
content: Compare to MA.333874 and MA.333402.
label: Description
content: This closely resembles the Model 181-4 machine described in <I>The Business Machines and Equipment Digest</I>, about. 1928, Sec 3-1, p. 14, 19. This was the “Special $100 Machine.”
label: Location
content: Currently not on view
place: label: place made
content: United States: Ohio, Cincinnati
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adding Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Immaculata School
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1978.2479.04
label: maker number
content: 170913
label: accession number
content: 1978.2479
label: catalog number
content: 336932
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: steel (overall material)
label: Physical Description
content: rubber (overall material)
label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 34.5 cm x 29 cm x 36 cm; 13 19/32 in x 11 13/32 in x 14 3/16 in