Vintage Post Boxwood 3-Sided Ruler 7311 Engineering, Drafting

Vintage Post Boxwood 3-Sided Ruler #1301 - Engineering, Drafting ENGINE DIVIDED

Vintage Post Boxwood 3-Sided Ruler 7311 Engineering, Drafting

Alvin 3 Sided Engineer Scale No 119 PC Triangular Drafting Ruler W-Germany

Vtg U.S. ST'D Wood Drafting Ruler Triangle 3-Sided Vintage 12" Dietzger

Lot of 3 Vintage Drafting Tools -Brass Protractor, Divider, Wooden 3-sided Ruler

Vintage Pantograph #1291 & Ridgway's 3-Sided Drafting Ruler w/Box & Instructions

Vintage - K&E ( Keuffel & Esser) Drafting Ruler 3 Sided Wood #8895 (712)