Vintage Post 1252 Drafting Scale Ruler Rule Tool W/ Case

Vintage Post 1268M Drafting Scale Ruler Rule Tool W/ Case

Vintage 6" Dietzgen Excello Drafting Scale Ruler Rule w/Leather Case #1556 USA

Rapid Rule - 6” Drafting / Architecture - Adjustable Rotating Ruler

Lot of 2 Pocket Drafting Scale Ruler w/ Leather Case Vintage Crofoot Nielsen Co

Vintage Dietzgen 1656 BP Triangular Scale Ruler Architecture Drafting

Keuffel & Esser K & E Architectural Drafting Ruler 1399W with Green Leather Case