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

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

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

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

Vintage 12" STAEDTLER MARS 987 19-31 Triangular Drafting Architects Scale Ruler

Vintage Staedtler-Mars 987 18-31 Triangular Architect Drafting Ruler 12"

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

Staedtler-Mars 987 19-34 Engineer Engineering Scale Triangle Drafting Ruler 12”