Vintage Parallel Rolling Ruler Architect Engineering Drafting Mechanical Taiwan

Alvin - Parallel Rolling Ruler 6 inch #306 - New in Box - Taiwan - vtg

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

VTG Rolling Ruler Set 6 & 12 Inch Parallel Glider Made in Taiwan Original Boxes

All Purpose Rolling Ruler 6 Instruments In One - Vintage- Taiwan

Palmer College Parallel #297M Chiropractic Tool, rolling ruler, metal

Multifunctional Drafting Drawing PARALLEL ROLLING RULER w/ Box & Directions

Vintage Parallel Rolling Ruler. New. Made In Taiwan.