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Descriptive catalogue of artists' materials, draughting papers, tracing cloth, and mathematical instruments. (1898)
Frost & Adams Co. · Frost & Adams Co., Boston, Mass. · leaf 293
587. No. 588. Protractor, 6 Inches dianiuter, whole circle, V^ degrees, Horn Centre and Movable Ai-ni, $12.00 No, 689. Protractor; 7 inches diameter, whole circle, Vi degrees, Horn Centre and Movable Arm, $14.00 Frost & Adams Co., 37 Cornhill, Boston. No. 590. Protractor, 8 Inches diameter,… … No. 592. Protractor, 8 inches diameter, Vj circle, V* degrees, and Vernier reading to one minute, $14.50 No. 593. Protractor, 10 Inches diameter, Vt circle, V4 degrees, and Vernier reading to one minute, $18.00Artists' materials · Mathematical instruments · Trade catalogs -- Artists' materials · Trade catalogs -- Mathematical instruments
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