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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 204

An illustration from 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, leaf 204
hold the ring in hishands and keep the needle north and south, standing with his face to the west. Theinclination of the needle as read off on the graduated scale will show the dip. If thecompass is held horizontally it serves as an ordinary compass. 8138 Miners Compass or Dipping Needle, 3 in.,… … 8140 Cross Staff Head, 2] in., octagonal, for Jacob Staff, in case $3.00 8141 Same as 8140, i\ in., in case . j.25 8142 Same as 8140, 3 in., in rase .. . 3.70 For Jacob Staff and Tripods, see page 193. Clinometer Rule.

Drawing instruments · Surveying instruments

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