Vintage Dietzgen Architects' 12" Triangular Scale Ruler 1683B Excello

Vintage 12" STERLING Triangular Drafting Architects Scale Ruler

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

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

Vtg Post U.S. ST'D Architectural Scale Ruler Genuine Boxwood Engine Divided

Staedtler® Triangular Scale Plastic Architects Ruler, 12", White

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

Vintage Hand-Marked Handmade Wooden Triangular Architect Scale Ruler Tool 12"L