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. . s shades attached to bothverniers. Compass, divided on Solid Silver to half degrees, with improved barneedle 4{/2 inch. With variation plate and capstan head for setting same. Vertical Arc, 5 inch, graduated on Solid Silver to 30 minutes, with ver-nier reading to 60 seconds. Weight of instrument without tripod, about 14 lbs. Instrument complete, in finely polished box, with plumb bob,reading glass,
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. . s shades attached to bothverniers. Compass, divided on Solid Silver to half degrees, with improved barneedle 4{/2 inch. With variation plate and capstan head for setting same. Vertical Arc, 5 inch, graduated on Solid Silver to 30 minutes, with ver-nier reading to 60 seconds. Weight of instrument without tripod, about 14 lbs. Instrument complete, in finely polished box, with plumb bob,reading glass, center key, adjusting pins, gossamer bag and tripodNo. 7400 each, $ 7662 Same as No. 7660, but with horizontal limb plate, 6l/2 inch, and compass needle, 5 inch each, Optional Additions to Either of Above Transits, To Order Only. 20 seconds verniers, instead of 30 seconds $ Astronomical (inverting) eye-piece, instead of erecting Three leveling arms, instead of four Magnifying glasses attached to verniers on limb plate 60 seconds verniers, at same price as Nos. 7660 and 7662. ® OUR IRON CLAD GUARANTEE, see page 196. 232 KOLESCH <fc CO. p»K^ NJ^W 7670 Engineers Transit, with Vertical Circle. (For description see page 233.)
Size: 1332px × 1876px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
