Based on the revised edition of "Jackson's Silver and Gold Marks of England, Scotland and Ireland", published in 1989, this slim volume contains concise and essential information in a handy pocket size reference, now issued in a paperback version. The editor of "Jackson's" has selected over 1000 makers whose work is of especial interest: some because they made fine work that is undervalued, others because they are of historical interest; a few because their work should be avoided. Complete cycles of silver marks are given for all the important assay offices, with variations shown for gold, platinum, Britania standard, import marks, etc. The Pocket Edition has been updated to 1991 to include current assay marks. The book is aimed at dealers, collectors, curators, auctioneers, students of silver and gold.