Vintage Brodhead-Garrett & Boxwood Architect Drafting triangle Ruler

Alvin No. 110P Precise Triangle Architect Drafting Scale Ruler West Germany 12"

Alvin 3 Sided Engineer Scale No 119 PC Triangular Drafting Ruler W-Germany

Vintage Pearwood Alvin No 210 USST'D Triangle Ruler Made in West Germany

KOH-I-NOOR Architect Ruler No 3260 Pearwood US Standard Triangle Made in Germany

Alvin No. 110P Precise Triangle Architect Drafting Scale Ruler West Germany 12".

VTG Pearwood ARCHITECT Scale Drafting RULER TRIANGLE Ruler US ST'D Stewart 521

Vintage Gramercy 360 101 Architect 6" Scale Drafting Ruler West Germany