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. . Nos 8117-8134 Nos. 8129-8134 For description and prices see opposite page. KOLESCH <fc CO. NfiW YORK. 277 Philadelphia Leveling Rods Improved Construction. Made from selected quarter sawed maple, carefully air seasoned andkiln dried. Prepared with five coats of pure white, weatherproof paintwhich will not turn yellow with age. The graduations are stamped withsteel dies by a machine which stamps
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. . Nos 8117-8134 Nos. 8129-8134 For description and prices see opposite page. KOLESCH <fc CO. NfiW YORK. 277 Philadelphia Leveling Rods Improved Construction. Made from selected quarter sawed maple, carefully air seasoned andkiln dried. Prepared with five coats of pure white, weatherproof paintwhich will not turn yellow with age. The graduations are stamped withsteel dies by a machine which stamps ten feet at one impression, therebyinsuring great accuracy. After being graduated the rods are finished withfour coats, rubbed, of the highest grade of weatherproof transparentvarnish. The front targets are made of hard cast bronze and equipped with animproved screw which cannot be lost. The screw is threaded on the in-side and sets over the lug attached to the brass clamping spring, which isalso threaded. A sleeve riveted to the target screw, between the ribs onthe back of the target, prevents any lateral motion and makes it impossibleto lose the screw. The rear targets are provided with a
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Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
