VINTAGE BOXWOOD SCALE RULER 6" Engine Divided

HARPER & TUNSTALL Ltd London & Glasgow Vintage Technical Map Drawing Instruments

Drafting machine scale rules pair Kuhlmann

Vintage Wooden Engineer Ruler Scale Rule Brough Engineer & Surveyor Derby Pair

ebony parallel drawing instrument

2 Vintage Old School Helix Brass Drawing Compasses & Protractor Made In England

Antique Early W F Stanley & Co London Drawing Drafting Surveying Instruments

ANTIQUE BRASS PROTRACTOR ENGINEERING DRAFTING TOOL ANGLE MEASURING INSTRUMENT