Ruler; ebony, round, with inset ivorine label inscribed "Ebony ruler said to have formed part of the desk equipment of Isambard Kingdom Brunel, First Engineer of The Great Western Rly. 1833-1858". Ebony ruler, Great Western Railway 1833-1858
Plastic ruler from kit for phase 3 Novavax 2019nCoV-302 vaccine trial at Stockport NHS Foundation Trust. Ruler from Phase 3 Novavax 2019nCoV-302 Vaccine Trial 2020
Boxwood Ruler, Great Northern Railway, 18" ruler advertising GNR services, 18"x1?" Boxwood Ruler, Great Northern Railway
Ruler, Great Northern Railway. Wooden ruler used by Edmund Denison one time chairman of Great Northern Railway, 1857. Dimensions 18"x1 1/4" Ruler, Great Northern Railway 1857
Cardboard Ruler, London & North Western Railway, "Rule of the Road Punctuality - Speed - Comfort". 12" ruler advertising LNWR facilities, Dimensions: 12"x1" Cardboard Ruler, London & North Western Railway