overall: 2 cm x 33 cm x 11.5 cm; 13/16 in x 13 in x 4 1/2 in
Germany: Lower Saxony, Osnabrück
These brass and steel dividers are joined by a ball-shaped hinge. The steel pointed tips of each leg are approximately 3-1/2" long. The brass portions continue for nearly another 9". A brass arc, or wing, with a circumference of approximately 8-1/2", joins the legs. A butterfly screw allows the arc to be removed. A wing nut tightens the adjustable leg so that the dividers are set in position. On the outsides of the legs, below the two screws, the dividers are stamped with wheels that have six spokes and a small circle at the center. According to a note in the accession file, this mark represents the heraldic symbol of the city of Osnabrück, Germany.
Dividers are alternatively called (non-drawing) compasses, or <i>Zirkel</i> in German. Draftsmen used them to measure distances and to create circles. This pair was probably manufactured in the 18th century.