Alvin Architect Scale Drafting Ruler No 110P Triangular West Germany Vtg

Staining, discoloration, ink marks, fading, wear to scale. See photos.

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ALVIN Engineering Triangular Scale Ruler White with Black Graduations 12 Model 111P, Drafting Triangular Scale for Engineers, Students, and Professionals - 12 Inches : Lawn And Garden Tool Accessories : Office Products

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