Trestle, for tripod stand supporting Surveyor's compensation bar, unknown maker, British, 1920-1950 Trestle, for tripod stand supporting Surveyor's compensation bar 1920-1950
Trestle, for tripod stand supporting Surveyor's compensation bar, unknown maker, British, 1920-1950 Trestle, for tripod stand supporting Surveyor's compensation bar 1920-1950
