Country of Origin United States
Maker C. E. Locke Mfg. Co., Kensett, Iowa

Check the listing for details. Antique Locke Adder - adding machine from around 1906. Made in United States. Listed at 275.00 USD. "Locke Adders" were a form of an abacus (but looking way fancier) made by Clarence E. Locke, patented in 1901. It was as pretty as its utility was limited, but is an interesting item for people collecting early adding machines.

$137.50
$275.00