Lot of 3 VintagePlastic Engineering Architect Scale Triangle Drafting Rulers 12"

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

Vintage Architect Scale Drafting Triangular Ruler 12” Lot Of 2

LOT OF 2 VINTAGE ARCHITECTS SCALE 12" DRAFTING TRIANGLE RULERS, LUTZ & DIETZGEN

Triangular Drafting Rulers Mixed Lot of 5 Vtg

Vintage 12" STAEDTLER MARS 987 19-31 Triangular Drafting Architects Scale Ruler

Lot 3 Triangular 3-sided drafting rulers, C-Thru 657, Pickett P-232A, Unbranded

Architectural Scale Ruler 12” Plastic Triangular Drafting Tool for Engineers