Vintage Fuller's Spiral Slide Rule or Calculator by John Davis with Case c1944

Vintage British " Classic" series 1 slide rule with case, antique Collectable

Vintage Boxed Mining Manometer - Antique Scientific Water Gauge Instrument

Vintage Fuller's Spiral Slide Rule Calculator Stanley in box case - Circa 1920

University College of South Wales meter rule or scale

Aristo Studio 0968 Slide Rule

Antique J W Towers & Co Mahogany Box Analytic Brass Weights Set

PIC 3650 SLIDE RULE 1950’S RARE GOOD CONDITION - A G Thornton With Case.