English, dated 1904, weights all numbered 2753, with many calibration verification and Exchequer marks, in a French polished mahogany case with catches, brass plaque to the lid reads 'STANDARD TROY WEIGHTS, LANCASHIRE COUNTY COUNCIL LOWER BLACKBURN DEVISION, 1904, DE GRAVE & CO LTD, LONDON', the Troy weights of standard cylindrical pattern in gunmetal consisting 21 weights with the small weights behind a glass cover, case width 18.5cm

Footnote: this set of weights was specially made to be used by the weights and measures department to calibrate any of the inspector's weights that were to be taken out on site.