P. Alan Rayner's revised fifth edition of Seaby's original ESC is by many still considered to be the standard work of reference for the series. Rayner extensively revised and extended the catalogue to include details of modern issues up to its publication in 1992, which have been further extended to bring it up to date for this 30th anniversary edition (marking 70 years of Queen Elizabeth II's reign in 2022). Each coin is listed by denomination, using Seaby’s original numbering, with over 3,000 coins listed and brand new images throughout.