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 150
50 2 00 2 50 3 00 mmmmrmmmmm POCKET MAGNIFYING GLASSES. No. Each. 1029A. Pocket Lens, with handle, % inch $100 1029B. \y± 125 1029C. \% 150 The Coddington lens is the most powerful form of the simple microscope. It consists of alens of sharp curvatures on the surfaces, and to obviate the spherical…
Drawing instruments
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