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

Vintage Alvin #295 Parallel Glider Drafting Tool w/ Original Box & Instructions

Vintage Hinged Parallel Ruler Drafting Tool 12"

Vintage MultiDraft Drafting Arm Parallel Straightedge Protractor Tool Adjustable

8" Alvin Parallel Glider #295 Drafting Tool

Vintage DIETZGEN Opisometer, Swiss 1/8” Scale Map Plan Measuring Drafting Tool

Multi-Purpose Rolling Ruler Parallel Glider Clear Vintage Drafting

Vintage Swiss Map Curvimeter Drafting Measuring Tool Centimeter Inches See Pix!!