Vintage 12" STERLING Triangular Drafting Architects Scale Ruler

Vintage Architects Scale Drafting Triangular Ruler Engineer 12" Lot of 6

Vintage 12" PICKETT P-232E-ES Triangular Drafting Architects Scale Ruler

Post Professional Architect Drafting Triangular Scale Ruler 12"

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

Lot of 2 Vintage Dietzgen 11626 Architect Drafting Triangular Ruler 12" Wood

2 Enginner & 1 Architect 12" Triangular Drafting Scale Rulers Alvin W.T. Rogers

Fullerton 3725 Triangular Scale Ruler Made in Germany Architect Drafting