Vintage Mayline Drafting Mechanical Parallel Line Ruler 12 inch Sheboygan WI

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

Multi-Purpose Drawing Parallel Rolling Ruler, 12 Inch Drawing Design Ruler for M

Vintage MultiDraft Drafting Arm Parallel Straightedge Protractor Tool Adjustable

Vintage Parallel Rolling Ruler Architect Engineering Drafting Mechanical Taiwan

Alvin No. 298 Metric Parallel Glider Rolling Ruler Architecture Drafting Vtg.

Set of 4 Vintage French Curves Drafting Tools Classic Vintage Design for Drawing

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