Lot of Drafting And Drawing Rulers 3 Sided and Flat

Alvin 295 Parallel Glider • Architect Drafting Engineering Tool • 9 1/2"

Vintage Lot of Drafting Architectural Tools Alvin Drawing Set and Rulers

Vintage Multi Purpose Drafting Rolling Brass Ruler Clear w/ Blue Text 5.25" Long

Roll-O-Ruler Rolling Drafting Ruler 12in Wei's CP-405

Vintage Ellipse Cirle Mixed Drafting Templates Lot Of (14)

Vintage SAN's Roll N Ruler Drafting Tool w Box Instructions Rolling Ruler

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 12" Line Bar