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 92
3% inch, No. 535-542 535. Semi-Circular Protractor, brass 536. «* «537.538.539.540.541.542.543. SWISS PROTRACTORS. Of German Silver. (1 5%6% German silv. ,4^ << << 5M << «• 6% << «< 7^ k <« 8K K° M° K° M° ^° V2° V2° … Each. $0 102050555580951 201 60 545.546.547. 548.54*).550. 545 Semi-circular Protractor, 4 edge, center on outer edge,Semi-circular Protractor, 5 edge, center on outer edge,Semi-circular Protractor, 6 edge, center on outer edge,Semi-circular Protractor, 6 edge, center on outer edge,Semi-circular…
Drawing instruments
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