Check the listing for details. KING CHARLES III FIFTY POUND NOTE £50 PREFIX AJ38 322712 UNCIRCULATED. Made in United Kingdom. Listed at 82.97 USD. The product is a £50 banknote featuring King Charles III, with the prefixes AJ38 322712. Part of the Sarah John series, this note is from the United Kingdom and is in uncirculated condition. It is made of plastic and is a valuable collector's item for those interested in British banknotes.