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 124
The same, 5 inch needle 35 00 939. 6 « , ,...,:,..,,. 40QQ SURVEYING COMPASSES. No. Each. 940. Surveying Compass, with sights graduated for taking angles of elevation and depression, two levels, variationplate, 5 inch needle, brass cover, with ball and socketjoint for Jacob staff mountings, in… … 944. Miners Compass or Dipping Needle, for tracing iron ore, glass on both sides, brass covers, needle 3% inch 10 00 945. The same, Norwegian needle, glass both sides, brass covers, needle 3% inch 14 00 HAND LEVELS.
Drawing instruments
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