Description
PIGEON, Proportion compass with 8 engraved brass scales: strings, ball weights, solids, metals on one side; equal parts, planes, poligones (sic) and caliber of pieces on the other. 18th century. Length: 17.5 cm.
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PIGEON, Proportion compass with 8 engraved brass scales: strings, ball weights, solids, metals on one side; equal parts, planes, poligones (sic) and caliber of pieces on the other. 18th century. Length: 17.5 cm.