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 63
1475 Lithographers Selfadjusting Bow Instrument, made of RolledGerman Silver with Steel Point, Needle Point fitted withhardened Steel Needle. By removing Steel Needle and insert-ing a piece of lead, can be used as a Bow Pencil. Withgraduated thumb screw, divided into 20 parts to a… … 1480 Spirograph, A new instrument for drawing the different forms ofthe Volute or Spiral. To draw Spirals use the double point andforce same well into the drawing board and turn carefully so asnot to cause any irregularity in the curves by jerking or changingthe grasp on the instrument. When…
Drawing instruments · Surveying -- Instruments
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