Bradbury's Book of Hallmarks: A Guide to Marks of Origin on English, Scottish and Irish Silver, Gold and Platinum and on Foreign and Imported Silver and Gold Plate 1544-2010 : Old Sheffield Plate Makers' Marks 1743 to 1860 | 
Currently turning our box room from a no longer used office into a much needed play/hobby room. Turned up this throwback to my pre-baby life as a jeweller. Had to study hallmarks for a professional qualification - just the sort of geeky esoteric knowledge I love!
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