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'Very rare and unusual 19th century Circular Protractor with Tangent...
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Early 19th Century Silver Mounted Shagreen Cased Drawing Instrument...
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A 19th Century Napier Pocket Folding Compass. This ornate instrument...
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Two Early Instruments From An Original Drawing Set By Buterfield....
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This is a set of adjustable plated draftsman's trammels for accurately...
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A high quality 19th Century drawing instrument Set, made of a pocket...
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This is an 8-piece drawing instruments set in fitted mahogany case....
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This is the most compact of all drawing instruments, a true mechanical...
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This is a set of 3 bow compasses with case marked Lawes Rabjohns...