Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc. / Kolesch & Company. (1917)
Kolesch & Company · Kolesch & Company · leaf 131
57, 60inches, in wooden box 12.00 Transparent Railroad Curve, same as in 6108, in box 15.00 Black Celluloid Railroad Curves, 40 in set, 3-120 inch radius, viz.:3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14. 15, 18, 21, 24, 27, 30, 33,36, 39, 42, 45, 48, 51, 54, 57, 60, 66, 72, 78, 84, 90, 96, 102,… … 6115 Black Celluloid Railroad Curves, with Tangent, 41 in set, marked indegrees and inches to scale, 100 feet=l inch, viz.: 0°.30=114.59 in.1° = 57.30 in. 1M5= 45.84 in. lc.30= 38.20 in. 1 .45= 32.74 in. 2- = 28.65 in. 2°.15= 25.47 in. 2°.30 = 22.92 in. 2e.45= 20.84 in. 3° =-. 19.10 in. 3°.15=…
Drawing instruments · Surveying -- Instruments
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