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 117
Do away with the annoyance of waiting for ink lines to dry beforedrawing intersecting or adjoining lines. Mounted on small steel wheels(see cut), which raise the triangle off the drawing just high enough toclear the same. The edges of the steel wheels are so fine that they willnot pick up or blur…
Drawing instruments · Surveying -- Instruments
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
