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 272
ction, 2inch. Two dials reading to 1,000 feet. Weight ST/2 ounces.In leather case.. each, $40.00 8063 Portable Anemometer, 2l/2 inch, 4 dials reading to 100,000 feet, with disconnector and zero setting device, in case... .each, 30.00 8064 Same as No. 8063, but 6 dials reading to 10,000,000… … The improvement consists, first, in a rearrangement of the workswhich admits of the column carrying the arms and cups, rising fromthe center of the base, and secondly, an arrangement by which the enu-meration is affected by two hands which can be set to zero on the com-mencement of an observation,…
Drawing instruments · Surveying -- Instruments
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