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

Architectural Scale Ruler, 12'' Imperial Architect Scale, Aluminum Engineer S...

2 Pcs Architectural Scale Ruler 12 Inch, Aluminum Architect Ruler & Metal Ruler

Vintage Dietzgen 31636 Triangular Engineer Architect Scale Ruler Drafting Tool

Vintage Lufkin 1066D Red End Folding Wooden Ruler 72in / 6ft Rugged Engineer

Vintage 72" Lufkin Folding Wooden Engineer Ruler Red End Model No. 066

2 Pcs Architectural Scale Ruler 12 Inch, Aluminum Architect Ruler & Metal Rul...

Vintage 12-Inch C-Thru Ruler, TS-657, Triangular, Engineer, Drafts, Architect