Large Monitroing Prism, with a bracket, Type "TUBE Big"
A prism for monitoring positional changes in a metal frame on a movable shoulder. The frame protects the instrument from rain and snow. Prism diameter: 60 mm.
A prism for monitoring positional changes in a metal frame on a movable shoulder. The frame protects the instrument from rain and snow. Prism diameter: 60 mm.