3 x Engine Divided Rulers Vintage Entwisle Thorpe & co , draughtsman

Vintage Engine Divided Boxed Set of 3 Rulers RICS Box Wood Original Box VGC

Two Vintage Wooden Rulers Made In England

Vintage UNIQUE Universal No.II Slide Rule UK made - boxed U.2 engineer surveying

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

2 x Vintage Survey Equip Batteries in Leather Case (Gnomon Survey LTD)

Vintage Pexto 6 Inch Wing Divider Caliper Engineer/Blacksmith Tool. Made in USA

Vintage German Slide Rule Made In Bavaria Engineer Drafting Tool w/ Case