Marks on gold & silver plate imported into the United Kingdom : including the Order in Council of 1907, referring to foreign gold and silver watch-cases (1907)
Redman, William · Bradford : W. Redman · leaf 15
each Assay Office, as shown in Figure 1 of the Appendix hereto, together with the decimal equivalent of the standard value of the silver, as shown in Figure 2 of the Appendix. J; The mark for the annual date letter is to be added by each Assay Authority after the mark for the particular Hall and… … SaVEXL
Hallmarks · Gold · Silver · Watchcases
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.