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

Staedtler-Mars 987 18-31 Three-Sided Ruler. Architect with Case Nice Condition

Staedtler Mars 987 18-31 Architect Triangular Scale Ruler 12" Made in Germany

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

Triangular Ruler STAEDTLER-MARS 987 19-31 ARCHITECT Ruler Plastic Germany

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

Vintage Staedtler-Mars 987 18-31 Architect Ruler w/ Sleeve - Made in Japan

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