Vintage Small Brass Protractor, Drafting Tool, 3.75" by 2" w/ Patina

Vintage Brass Drafting Mechanical Protractor

Vintage Small White & Blue Metal 180 Degree Protractor A&W Products Co Inc

Vintage small Brass Protractor - USA unknown era or maker GC

Antique Brass Drafting Mechanical Protractor Eugene Dietzgen Co.

Lot of 3 Vintage Drafting Tools -Brass Protractor, Divider, Wooden 3-sided Ruler

Vintage Brass Protractor USA 180 Degree Ruler Drafting Tool Measurement Antique

Vintage Brass Drafting Mechanical Protractor Eugene Dietzgen Co.