Still in original box - complete set of 12 antique Victorian era lobster choices by Sheffield England. All pieces are stamped on the underside on the handles with the EPNS A1 SHEFFIELD ENGLAND mark. EPNS A1 is the highest grade of silver plating that the maker offers. EPNS = Electroplated Nickel Silver A1 = the thickness of the silver plating which is usually 30 - 35 Microns. Greatest Grade of Silver plating. The greater the grade, the longer the flatware will last. 35 Microns of EPNS will last approximately 40years,.