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This is called The Lightning Calculator and made in Grand Rapids, Michigan. It is in a walnut wood base. Stylus may not be original, but operates machine very well. Per the Ernst Martin and Thomas Russo books on antique calculators, this dates to 1908. Later models were produced in Bakelite Plastic bases in the 1920s. Machine is in very good condition and operates with all tens, 10s, carry over. Result numbers need cleaning to view better, but may deter from original history. Size is 13” x 4” x 2” high. More provenance notes are that machine was first made by Bonham & Schram in Chicago. They changed the name in 1905 to Lightning and 1st machines did not have a base.
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