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

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

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

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

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

Vintage Staedtler Mars 12" Triangular Metric Ruler Scale White 987 18-34 JAPAN

Triangular Scale Ruler Staedtler-Mars 987 18-31 Architect (70A/5 D56)

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