Unique: Vintage Slide Rule In Original Box Made In England

Slide Rule by Unique. Made in England.

Vintage Lawrence Engineering Service, Wabash Ind. Wooden Slide Rule. Made in USA

Vintage Unique Ten Twenty Slide Rule & Original Box, Instrument Made in England

Fab Vintage The Unique Slide Rule Log Log Wooden In Original Box Made In England

Vintage Cased Faber Slide Rule - No Cursor - Nice 1950s/60s Instrument!

2 x Rare Unique Log Log Slide Rule Vintage, Made in England.

Universal Slide Rule Vintage 'Unique' Design Made In England Log Log Calculator