Vintage Stanley No 53-1/2 Architect's Drafting Rule Ruler Boxwood/Brass

Vintage DIETZGEN Drafting Wooden Triangle 3 Sided Ruler 12 3/4" Long USA

Vintage Ruler Lot Engineer Architect Scale Wood Westcott Drafting West Germany

Architectural Scale Ruler 12" Aluminum Architect Scale Triangular Ruler for B...

Vintage 6 Lot Ruler 5 Wood Westcott Strateline Pearwood Dietzgen + 1 Plastic 12"

Vintage DIETZGEN Drafting Wooden Triangle 3 Sided Ruler #11632

Alumicolor Architect 6 inch Ruler Scale w/ 4 Bevel for Drawing, Drafting & En...

Alumicolor Architect 12 inch Ruler w/ 4 Bevel Scale for Drawing, Drafting & E...