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 199
A. Thumb Loop. B. Clamp for lifting the needle from contact withjewel when instrument is not in use. C. Press Pin, for bringing the needle to rest quick-ly when taking an observation. D. Face of Prism Box, showing aperture leadingto compass and sight. E. Back of Prism Box, showing extension of…
Drawing instruments · Surveying instruments
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