You can also get this year's Standard Catalogue of British Coins, otherwise known as Coins of England (COE) 2026, the title now owned by Sovereign Rarities, but before that Spink and before that Seaby's to avoid confusion down the line. All or any could could be used depending on the age of the person writing. It comes out every year in 2 parts and you need the decimal section (the cheaper one) which is £25(?) this year. The bigger volume covers British Celtic coins through to 1970 when we changed from imperial to metric money on 15th February 1971 (the other D-Day). Less informative volumes and therefore cheaper year books can be bought from Chris (Collectors Coins) here, or Token Publishing (Coin Yearbook), or Coin Market Values. None agree on prices, but given no two coins are the same, it is no surprise,