Vintage 12" STERLING Triangular Drafting Architects Scale Ruler

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Alvin 12" Triangular Drafting Architects Scale Ruler 247, in Case, Boxwood

Aluminum Triangular Architect Ruler w/Laser-Etched Imperial Drafting Scales 12"

Vintage 12" Staedtler Mars Triangular Drafting Architects Scale Ruler Japan

German Vintage Architects Triangular Drafting Ruler 12”

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