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 217
.20 2.75 2.75 3.50 4.25Amber Lettering Angles, per set (3) $2.00 No. Inches,156. Each, MAHOGANY STRAIGHT-EDGES. TRANSPARENT AMBER EDGES. 18 24 30 36 42 48 54 60 $1.25 1.50 1.75 2.50 3.25 4.00 4.75 5.75 Triangles and Curves of rubber and wood kept in stock and supplied. SLIDE RULES. No. 157. Dennert… … P.:. JdIj I. 1893 Insures accuracy in measurements with steel tapes. Above cut fui.Weight one ounce. It is used by clamping to the tape, about one foot from thehandle, by means of the two springs shown, and can be attached and detachedinstantly. Price, $1.50. (a) THERMOMETERS. A full supply of…
Surveying
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