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1908 Bausch & Lomb
Surveying Instruments


The Saegmuller patent solar attachment

Mining & Reconnoissance Transit

Mining Transit with prismatic side telescope

2-A 5" Transit

Standard 5" Transit

5" Railroad Transit

Standard 6" Transit

City Engineer's 6" Transit

4" Standard Theodolite

7" Complete Transit Theodolite

Bausch & Lomb other instrument makers