Vintage Genuine Boxwood Drafting Ruler Divided Charvoz Made in W Germany

Vintage Keuffel + Esser Triangular Drafting Scale Ruler 56 3648 W/ Case 12”

Triangular Ruler Vintage Wood Dietzgen 31626 Architect 12” U.S. STD

Lot of Five Vintage Architectural Rulers ~Post, K&E, Grumbacher, Staedtler-Mars

Dietzgen Wooden 3 Sided Triangular Ruler Scale Drafting Vintage 31626 USA 12"

Keuffel & Esser Co Leroy Lettering Set Model #61-2944

Dietzgen Wooden 3-Sided Triangular Ruler Scale Drafting Vintage USA 12" w/Case

Vintage K&E Doric 56 3850 Triangular Wood Engineer's Scale Ruler 12"