Aluminum Triangular Architect Ruler w/Laser-Etched Imperial Drafting Scales 12"

Vintage 12" PICKETT P-232E-ES Triangular Drafting Architects Scale Ruler

Fullerton 3725 Triangular Scale Ruler Made in Germany Architect Drafting

TACRO 4850 Architect Scale Ruler 12” 3-Sided Germany Drafting Tool Vintage

Vintage Architect 3 Sided 12" Ruler TACRO 4782-ARCH Made in Germany

Vintage Gramercy 530 Architect Triangular Scale Drafting Ruler West Germany

Tacro SCALE Drafting 3 Sided RULER NO. 4857 ENGINEER Triangular Made In Japan

Alvin 12" Triangular Drafting Architects Scale Ruler 247, in Case, Boxwood