Keuffel & Esser Vintage Tri Angle Drafting Architect Ruler Model 563774 For Sale

The Keuffel & Esser Vintage Tri Angle Drafting Architect Ruler Model 563774 is a collectible engineering tool with a unique design and historical significance. Made by the renowned brand Keuffel & Esser in Denmark, this ruler was used in drafting and architectural work. Its vintage appeal adds to its value as a nostalgic artifact for collectors and enthusiasts in the field of engineering and drafting tools. The ruler's precision and craftsmanship make it a valuable piece for those interested in the history of engineering and design.