blackthorne56: Two Complete Sets
blackthorne56: Keuffel & Esser 4053-3 Slide Rule 1944-1953
blackthorne56: Inclinometer
blackthorne56: Adjustable Width Strip Cutting Tool
blackthorne56: Bone finial drafting compass pencil ✏️
blackthorne56: This is what was inside
blackthorne56: What the Auction showed that was for sale
blackthorne56: Drafting Tools
blackthorne56: Drafting Tools
blackthorne56: Protrotractor
blackthorne56: Drafting Tools
blackthorne56: US Army Corps of Engineers Field Map Sketching Board 1913
blackthorne56: Built in Compass
blackthorne56: Field Sketching Board 1913
blackthorne56: Charting Tools
blackthorne56: 129 Years of Drafting Tools
blackthorne56: Vintage Dietzgen Drafting Tools
blackthorne56: Antique Drafting Tools, 1888-1900
blackthorne56: Grand Prick
blackthorne56: Drafting History, 1888, & 1870
blackthorne56: Compass Converts from Pen to Pencil
blackthorne56: Compass Converts from Pen to Pencil
blackthorne56: Georg Schoenner patent 44741, February 5, 1888
blackthorne56: Dietzgen Germany
blackthorne56: A cache of antique & vintage drafting tools
blackthorne56: Dietzgen Germany