Manual of modern surveying instruments and their uses .. (1893)
Lietz, firm, math. instr. makers, San Francisco. (1893. The A. Lietz company) [from old catalog] · [San Francisco] The Company · leaf 20
THE A. LIETZ COMPANY. 6 and designed for aluminium castings, with which metal thecompany has lately made many experiments, and out of whichthe remarkably light transits and levels have been made, whichshall be noticed more in detail further on. From the foundry a stairway leads to the roof, upon…
Surveying
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