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 106
CENTROLINEADS OR PERSPECTIVE LINEADS. No. Each. 727. Centrolinead, pearwood, brass swivels with two studs, blade 36 inches long, arms 12 inch $4 00 For drawing, both edges of the blade are used. The above illustration shows position ofthe linead for drawing from the left. In drawing from the right,… … 728. For perspective drawing, ebony, with German silver mountings, 42 inches long, and two studs $11 00 ODONTOQRAPH.
Drawing instruments
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