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 268
A convenient tool fordetermining whether therod is held in a perpen-dicular position. Can beclasped against the rodby holding the two in thehand, or can be attachedto the rod b3 a screwprovided for this purpose. 7985 Rod Level, metal,round level vial, 1inch in diameter.Each $3.00 KOLESCEC «fc CO.… … Especially designed and constructed for readily ascertaining slightvariations in heights, levels, etc. Stout bronzed metal case, silvered metal dial, vernier_ scale with rackmovement, magnifying glass arranged to traverse the entire circle. Eachin solid leather sling case. 8004 Surveying Aneroid, 3…
Drawing instruments · Surveying -- Instruments
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