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 196
No 39f-ALT-AZIMUTH INSTRUMENT. Circles 7 inches in diameter. Microscopes read directly to 5 seconds.Telescope, 13-inch focal length and i^-inch aperture. Power, 25 and 36. Price, $700.00. Part IV. … No. 40f.ALT-AZIMUTH INSTRUMENT. Circles, 5% inches diameter: verniers read to 10 seconds with reading-glasses.^Tel-escope has a focal length of glA inches and a i^-inch aperture. Power, 20 and 30. Ad-justable eye-piece. Striding level and level to vertical limb. Reversible axis. Price, $450.00.…
Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
