Staedtler Mars Masterbow Compass Set 55103

Vintage Compass Drafting Set for Technical Drawing

Vintage Staedtler Mars Masterbow Drafting Set Technical Drawing Set

Vintage Staedtler Mars Superbow technical drawing compass set - Missing Parts

Staedtler Precision Drafting Compass Mechanical Drawing Instruments Set #20254

JK Architect Vintage Drawing Compass Set with Hard Case Technical Drafting Kit

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SECTOR OR PROPORTIONAL COMPASS. SCIENTIFIC DRAWING INSTRUMENT. VERY GOOD.