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

Vintage Keuffel & Esser (K&E) Leroy Height & Slant Scriber #61 0020 Complete Set

Staedtler Mars Adjustable Triangle 964 51-8

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

Staedtler Mars Adjustable Triangle W/ Slope & Rise 964 51-8 USA

Set of 2 Staedtler Mars 964-50-10, 964-50-8 Adjustable Triangle Made In USA NEW

STAEDTLER MARS 8” Adjustable Triangle 964 50-8 USA

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