A good Adder 'keyboard' calculation machine, circa 1903,
Lot 120
A good Adder 'keyboard' calculation machine, circa 1903,
Sold for £780 (US$ 1,311) inc. premium
Auction Details
A good Adder 'keyboard' calculation machine, circa 1903,
Lot Details
A good Adder 'keyboard' calculation machine,
circa 1903,
No. 6243, with two rows of five keys from 1-10, zero key, in brushed finished shaped metal case, in original brown leather travelling case - 5in. (13cm.) wide.
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