Vintage VEMCO 32 ND 9S15 Aluminum Drafting Ruler Straightedge 12"

Vintage Vemco USA P-21 Full Size 1/32in & 1/50in Drafting Scale Ruler 18 Inch

Vintage Vemco 9P-8 Drafting Machine Scale Ruler 12” Pasadena CA USA

Vintage VEMCO 9S14 Aluminum Drafting Ruler Adjustable Straightedge USA

Engineering - Vintage - VEMCO 9P-14 Drafting Machine 12" Scale Ruler

Vemco P-34 Clear Plastic Drafting Machine Scale 18” Ruler New Old Stock USA Made

Vintage Vemco USA P-21 Full Size 1/32in & 1/50in Drafting Scale Ruler 12 Inch

Vintage Vemco B-160 Architect's Scale Drafting 12" Ruler Aluminum? Triangular