Name/Title
ComptometerTags
Comptometer, John Henry KirbyScope and Content
Vintage Comptometer PAT D FELT 1885Collection
John Henry Kirby EstateParts
Count
7Parts
component, lever, control knob, lever stop, output display, controlled key, safe guardCondition
Reason for Exam
InventoryOverall Condition
FairDate Examined
Oct 17, 2021Research Notes
Research Type
ResearcherDate
Oct 16, 2021Notes
A vintage calculator from the 1900s. Calculation supported: Addition, Subtraction, Multiplication, Division. It served as an adding calculating machine. Patented in the US 1887.Create Date
April 7, 2021Update Date
November 12, 2024