English, earliest stamp 1903, the case with an engraved plaque to the lid for 'STANDARD APOTHECARY WEIGHTS, LANCASHIRE COUNTY COUNCIL, DE GRAVE & CO. LTD, LONDON', each weight stamped with the set number 2374 and profusely marked with Exchequer and verification marks, the case 24cm wide
English, earliest stamp 1903, the case with an engraved plaque to the lid for 'STANDARD APOTHECARY WEIGHTS, LANCASHIRE COUNTY COUNCIL, DE GRAVE & CO. LTD, LONDON', each weight stamped with the set number 2374 and profusely marked with Exchequer and verification marks, the case 24cm wide