Staedtler Mars Architect Scale Ruler 987 19-31 Triangular Drafting Scale Japan

STAEDTLER-MARS 987 18-31 Architect Eng. Scale Triangle Drafting Ruler 12"

Staedtler-Mars 987 19-31 Architect Scale Triangle Drafting Ruler White 12" VTG

STAEDTLER-MARS 987 18-31 Architect Engineering Scale Triangle Drafting Ruler 12"

VINTAGE STAEDTLER MARS RULER 987 18-31 ARCHITECT 12' TRIANGULAR SCALE Germany

STAEDTLER-MARS 987 18-31 Architect Eng. Scale Triangle Drafting Ruler 12"

VTG Staedtler Mars 987 18-31 Trianglular Scale Ruler Drafting Architect Engineer

Mechanical Architect's vintage Scale Triangle Drafting Ruler WOODEN West Germany