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

Vintage Sterling Architects Scale Drafting Triangular Ruler Engineer 12” pc

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

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

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

Vintage Architect Scale Drafting Triangular Ruler 12” Lot Of 2

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

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