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

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

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

Lot of 2 Alvin Triangle Scale Ruler Architect Germany 110P Pickett P-232E Japan

Vintage ALVIN Triangle Scale Architect Ruler- Made in Germany 110P 13"

Alvin 12” Triangular Scale Ruler No. 110P Architect Drafting Germany

Alvin 3 Sided Engineer Scale Ruler No 119 PC Triangular Drafting Architect 12"