Alvin No. 266P Engineering Divided U.S. Std. Drafting Scale Ruler w/ Case

Alvin 266P Drafting Engine Divided Ruler Four Bevel Scale w/Plastic Case ITALY

Artist Drawing Tool Proportional Scale Divider Ruler Craft Drafting And Image**

Alvin 117 PM Metric Drafting Triangle Ruler In Case Plastic. Germany

Vtg Drafting Tool Lot K&E Leroy Tacro Pickett Dietzgen C-Thru Alvin Vemco Lutz

Alvin 742 PM Triangular Drafting Engineering Scale Ruler Made in Germany

2 Engineer & 1 Architect 12" Triangular Drafting Scale Rulers Alvin W.T. Rogers

Vintage Bruning 12” Drafting Scale Ruler Style C-32 Plastic w/ Original Box EUC