Collectors of Diana mugs and Will and Kate plates get ready - the new royal baby is set to bring with it a new piece of collectible memorabilia . To mark the birth of the Duke and Duchess of Cambridge 's second child , a £5 coin will be issued to celebrate the occasion . The forthcoming royal baby - due mid to late April - will be fourth in line to the throne and is not expected to ever rule as monarch , but just like older brother Prince George the occasion will be marked with a commemorative coin . A commorative £5 coin has been issued to celebrate the birth of the second royal baby . A similar commission was made at the birth of Prince George ( his coin pictured ) The Queen , the baby 's great-grandmother , approved the decision at a meeting of the Privy Council at Buckingham Palace on March 19 . The coins are anticipated to be very popular as thousands of commemorative coins were struck to celebrate the arrival of George in July 2013 and sold out within days . The Royal Mint produced 10,000 solid silver crown-sized £5 coins , which cost £80 each , and 2,013 ( equivalent to his birth year ) 22 carat gold sovereigns , which cost £800 each . Both featured the prince 's namesake St George . In July 2013 after the birth of Prince George 2013 coins were issued with those born on the same day entitled to a free 'lucky ' silver coin . Babies born on the same day as George were also entitled to receive one of 2,013 free 'lucky ' silver pennies . When George turned one , the occasion was also marked by a commemorative £5 coin - making him the first member of the royal family to have his first birthday honoured with a new UK coin . Only 7,500 of the sterling silver crowns were cut and feature the royal arms in a cross-form design . His christening was also marked with a coin , which was decorated with traditional lilies and cherubs . As well as his birth coin Prince George also had a second £5 coin to mark his first birthday , above .
The £ 5 million - sized poster will be released after baby 's birth in 2020 . Decision was unveiled by the Queen on March 2019 . posters with St George posters for Prince George 's birth sold out in days .