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. . le A—The above cut represents the lower plate with the divisionsand numbering used on all of our stock transits. Numbered in two rowsfrom 0°-360° and from 360°-0°, the slant of the figures denoting the direc-tion. Inner row of figures is placed on Solid Silver, and the outer rowon the adjacent phosphor bronze of the limb plate. This arrangement makesit almost impossible to make an error in reading.
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. . le A—The above cut represents the lower plate with the divisionsand numbering used on all of our stock transits. Numbered in two rowsfrom 0°-360° and from 360°-0°, the slant of the figures denoting the direc-tion. Inner row of figures is placed on Solid Silver, and the outer rowon the adjacent phosphor bronze of the limb plate. This arrangement makesit almost impossible to make an error in reading. Can furnish to order any of the following styles of divisions:Style B—Lower limb plate numbered on inner row 0°-180° and back180°-0°. Outer row from 190°-360°. Style C—Inner row in quadrants 0°-90°-0° right and left from row, 0°-360o. KOLESCII <fc CO. (&*lp\ NEW YORK. 2or Verniers The following types of verniers are the ones most generally used, andas they are fully illustrated need not be described in detail. Of those we use30 seconds verniers on our Transits Nos. 7500-767360 seconds verniers on our Transits Nos. 7700-772220 seconds verniers to order only. Limb plate divided to 20 minutes, verniers reading to 30 seconds.
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
