$35 Lightning Calculator Mechanical Antique
This mechanical calculator is from the early 1900s. It was manufactured by the Lightning Calculator Company of Grand Rapids Michigan. The calculator sits into a wooden triangular base with room to hold the wood stylus. The base has 4 rubber feet on the bottom and measures about 13 inches long, 3-1/4 inches wide and 2 inches down the back. The calculator itself measures 12 inches x 2-1/2 inches. With original cardboard sleeve and a wooden stylus, I do not know if this is original to the set.
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