Аукцион Bidspirit | A round badge pin: a

A round badge pin: a triangle with a dot in its centre, the usual map symbol for a triangulation point (survey point), on a background of a coordinate grid, metal with remains of yellowish colour in the squares. The emblem of a mapping or surveying body; the body is not identified. Safety-pin fastening on the back. Diameter about 20 mm. Condition: exactly as photographed. - Badge pin: a triangulation point on a coordinate grid, mapping and surveying