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 Germany 12"

Alvin 110-P Triangular 12" Architect Scale (West Germany)

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

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

Vintage Alvin West Germany Triangle Profile Architect's Scale, Excellent

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