The C-Thru Ruler Co 15” Adjustable Hinged Parallel Line Drafting Rule Tool

Vintage Vemco AP-2 Drafting Machine Scale Ruler Antiflex Metal Core USA

VTG Rolling Ruler Set 6 & 12 Inch Parallel Lines Glider Rulers Drawing Drafting

Vintage The C-Thru Ruler Co USA Drafting Tool Adjustable Parallel 15" Line Bar

Dietzgen 1626 Wooden 3-Sided Triangular Ruler Scale Drafting Vintage USA 12" Woo

LARGE VINTAGE Drafting Machine Scales / Parallel/Triangular Rulers Lot of 9

C-Thru Ruler Co. Drafting Parallels 15" + 12" Cartography Navigation Design USA

The C-Thru Ruler Co USA Vintage Drafting Tool Adjustable Parallel 15" With box