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. (1907)
Kolesch & Company · Kolesch & Company · leaf 91
Above cut illustrates the construction of the Precision Slide Rule: a is thewood stock ; b, the celluloid facings ; c, are strips of rubber underlying the scales. Bymeans of these rubber strips the rule becomes self-adjustable, and all further devicesfor adjustment are obviated. The ends of the… … 2365 Indicator, single line, for all sizes, each, $ .75 2366 Indicator, double line, for 10 and 20 in. rules .75 2367 Indicator, broken line, for 8 and 10 in. rules 1.05 2368 Brass Indicator, for 10 in. rules .75 KOLESCH & CO. NEW YORK. 87 PRECISION SLIDE RULE. Improved Construction. (For…
Drawing instruments · Surveying instruments
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