Title
Napier's Bones hand calculatorCatalog Number
102622813Type
Still ImageDescription
Negative/Black and white. Napier's Bones, a handheld calculator consisting of ten rods and two extra, representing squares and cubes. Verso: stamp reads: "Property of The Computer Museum." this stamp marks was exposed to a liquid. Also handwritten "P83.9" located in top left corner.Identifying Numbers
Other number | P1892 |