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 110P High Impact Plastic Architect Triangular Scale , Drawing Drafting....

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

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

ALVIN No 110P. ARCHITECT U.S. ST'D. USA