Bradbury's book of hallmarks : a guide to marks of origin on English, Scottish and Irish silver, gold and platinum, palladium and on foreign imported silver and gold plate, 1544 to 2020 : old Sheffield Plate makers' marks, 1743-1860 /
Bradbury, Frederick,1864-1949compiler.
Great Britain.Sheffield Assay Office.editor,issuing body.
Hallmarks
Gold
Silver