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 247
e figures denoting the direction. Verniers. One vernier, at 30 degrees to the telescope, reading to60 seconds (see page 201). Weight of instrument without tripod, about 7 lbs.Instrument complete, in finely polished box, with plumb bob, reading glass, adjusting pins and tripod No. 7410 each, $85.00… … 7800 Improved Y Level. (For description see Page 245.)
Drawing instruments · Surveying -- Instruments
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