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

STAEDTLER MARS 8” Adjustable Triangle 964 50-8 USA

(O) Staedtler Mars 964 51-8 Adjustable Triangle w/ Slope & Rise in Box U.S.A.

Staedler Adjustable Triangle MARS 964 51-8

STAEDTLER Mars 964 51-6 Adjustable Triangle Rise Slope Degrees

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

Vintage STAEDTLER Mars 964 51-10 Adjustable Triangle Drafting Ruler

Staedtler Mars 964 51-10 Adjustable Triangle Rise/Slope /Degrees+ Ruler VTG