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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 171

An illustration from 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, leaf 171
any other distance. Gradienter Attachments (for distance measurements) will be furnished with ourinstruments whenever required. The Gradienter is a special tangent screw attached tothe clamp of the telescope axis; it is divided into 50 parts, one complete revolutionof the screw corresponding to one… … The above cut represents the lower plate with the divisions and mode of number-ing. If desired, the limb can be numbered anv other way.

Drawing instruments · Surveying instruments

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