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

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

Staedtler-Mars 987 19-4 Architect Scale Triangle Drafting Ruler White 12" VTG

Staedtler® Triangular Scale Plastic Architects Ruler, 12", White

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

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

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