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. . 8081 Current Meter, with 2 graduated wheels registering to 1,000 revolu-tions, with eccentric lever, operated by strings, for engaging or dis-engaging. Propeller, 5 in. diameter, with agate and ball-bearingaxis. Detachable metal rudder, 7x3 inches. Can be attached to anyconvenient pipe or pole about 1 inch diameter and fastened on same,either in a fixed or a swiveling position, by means of the set
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. . 8081 Current Meter, with 2 graduated wheels registering to 1,000 revolu-tions, with eccentric lever, operated by strings, for engaging or dis-engaging. Propeller, 5 in. diameter, with agate and ball-bearingaxis. Detachable metal rudder, 7x3 inches. Can be attached to anyconvenient pipe or pole about 1 inch diameter and fastened on same,either in a fixed or a swiveling position, by means of the set finely polished wooden case each, $ 8083 Current Meter, pocket size; similar in construction to No. 8081, butwith propeller, 3 inches diameter, and without rudder; size of polerequired about y± inch diameter; in morocco case, 9x4x1^- Small,neat and compact each, $ 272 KOLKSCII <fc CO. ^K^ NEW YORK. Rain Gauges Made by Short & Mason, 8086 Selfregistering Rain Gauge, 2 dials, zero setting, registers1/100 of an inch up to 12 japanned metal case, 8x10,with directions each, $ 8087 Same as Xo. 8086, but in per case each,
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Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
