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

Staedtler-Mars 987 18-31 Architect Scale Triangle Drafting Ruler Made In Germany

Staedtler-Mars 987 19-34 Engineer Scale Triangle Drafting Ruler White 12" VTG

Staedtler-Mars 987 18-34 Engineer Scale Triangle Drafting Ruler 12" Japan White

Staedtler-Mars 987 18-34 Engineer Triangle Scale Drafting Ruler 12'' Japan White

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

STAEDTLER 987 19-31 Architect Ruler Eng. Scale Triangle Drafting 12" Japan

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