Replica of Liverpool & Manchester Railway 1st Class carriage 'Traveller' 1930 (replica); 1834 (original)
Crystals of cupreous oxide formed on the copper plates used to precipitate silver from its sulphate solution 1869
Oxide from near the charging door of the silver blast furnace in Cordurie's process. Par Smelting Works 1870
Engineer's combination rule, c. 1870 includes protractor, depth gauge, rule and slide rule function. This combination rule includes a protractor on the jointed hinge and a brass depth gauge sliding section and a sliding logarithmic scale which could be used as a slide rule type calculator. Engineer's combination rule 1870