Identifier: IllustratedCatalogueAndPrice-listOfDrawingAndTracingPapersSunPrint (find matches)
Title: 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.
Year: 1917 (1910s)
Authors: Kolesch & Company
Subjects: drawing instruments drafting instruments surveying -- instruments
Publisher: Kolesch & Company
Contributing Library: Canadian Centre for Architecture

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iers at 30 degrees to the telescope, read-ing to 30 seconds (see page 201). Ground glass shades attached to bothverniers. Compass, divided on solid silver to half-degrees, with improved barneedle, 2 inch. With variation plate and capstan head for setting same. Vertical Circle, 4 inches, graduated on solid silver to 30 minutes, withvernier reading to 60 seconds. Weight of instrument without tripod, about 9J/2 lbs. Instrument complete, in finely polished box, with plumb bob,reading glass, center key, adjusting pins, gossamer bag and tripodNo. 7400 each, $220.00 Optional Additions to Above Transit, To Order Only. 20 seconds verniers, instead of 30 seconds $10.00 Astronomical (inverting) eye-piece, instead of erecting 10.00 Three leveling arms, instead of four arms 15.00 Magnifying glasses, attached to verniers on limb plate 10.00 60 seconds verniers at same price as No. 7560. ®°OUR IRON CLAD GUARANTEE, see page 196. 21 8 KOLESCH <fc CO. &Hp^ NEW YORK, (Extra Fine Quality Transit
Text Appearing After Image:
7600 u Extra Fine Quality Transit. (For description see page 219.) KOLESCH «&c CO. 1STEW YORK. 219 Kolesch Transit No. 7600 Extra Fine Quality. 7600 Extra Fine Quality Transit, for high-grade work requiring ex-treme accuracy and precision. Bent Standards. With powerful achromaticterrestrial (erecting) telescope about 11 inches long. Magnifyingpower 24 diameters. Will focus 5 or 6 feet from the instrument, which is veryconvenient on short offsets. Lenses are especially made and selected by thebest European optical works. Aperture of object glass 1 3/16 inches. DustCap and Sun Shade. Improved rack and pinion movement to eye-pieceand objective. Fine bubble (4*4 in. vial) of 30 seconds sensitiveness, grad-uated on the glass and attached to the extreme end of telescope. Thisposition of the bubble insures greater accuracy in leveling and makes itvisible in its entire length from either side. Telescope reversible fromboth ends. Center point in top of telescope axis for the purpose ofset

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