Minted in 2009, these fetch around £250 - which is still a nice bump to your bank account. King George V reigned from 1910 to 1936, and is often credited for modernising the British monarchy.
Image caption, This is an illustration of King George V before he took to the throne. During WW1, he visited the front line many times. However, in 1920, he decided to send out letters again ...