Vintage Staedtler Triangular Scale Drafting Ruler 987-19-31 Architect 12" Japan

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"

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

Vintage 12" STAEDTLER MARS 987 19-1 Triangular Drafting Architects Scale Ruler

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

*VINTAGE* STAEDTLER-MARS 987 18-31 Triangular Drafting Scale with Case

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