STAEDTLER MARS 964 51-8 Drafting Slope Ruler with Shipping Included

Vintage STAEDTLER Mars 964 51-10 Adjustable Triangle with Slope & Rise Drafting

Staedtler Ruler Gradient Ruler Mars 20cm 964 51-8

Vintage Staedtler Mars 964 51-10 Adjustable Triangle Rise/Slope /Degrees+ Rulers

Staedtler Mars Adjustable Triangle with Slope & Rise 8” - 964 51-8

STAEDTLER Mars Gradient Triangle Ruler 20cm 964 51-8

Vintage STAEDTLER Mars 964 51-10 Adjustable Triangle Drafting Ruler

STAEDTLER Mars 964 51-6 Adjustable Triangle Rise Slope Degrees