Catalogue. A.H. Abbott & co., manufacturers and importers of mathematical and surveying instruments and drawing materials of every description .. (1896)
Abbott, A. H., & co., Chicago. [from old catalog] · [Chicago] · leaf 144
ansit or level 1 00 Fixed Stadia Hairs in telescope 2 50 Adjustable Stadia hairs in telescope 5 00 Object Glass 6 00 to 10 00 Eye=piece 6 00 to 8 00 Variation Plate to compass ring 5 00 Plain Tripod, for levels and transits Nos. 978 to 980 and Nos. 987 to 989B 10 00 Split Tripod, for levels and…
Drawing instruments
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