Grinning Prince George featured on stamps celebrating Queen Elizabeth's 90th birthday

Young Prince George is stealing the show as he makes his debut on a Royal Mail stamp in honour of Queen Elizabeth’s 90th birthday.

The Queen and the three heirs to the British throne are shown in the photo, which has been released by the Royal Mail, being used in part of a 10-stamp collection for Her Majesty’s milestone birthday.

Six of the 10 stamps depict Her Majesty’s life and work, including a picture of the Queen with her father, and with her children Princess Anne and Prince Charles when they were young.

.@RoyalMailStamps have issued a further 6 Special Stamps to honour HM’s family life and official role #Queenat90 pic.twitter.com/TIcl7NGNwR

— BritishMonarchy (@BritishMonarchy) April 20, 2016

Prince George is standing on a set of blocks in the photo. The young, grinning prince turns three in July. 

.@RoyalMail celebrates #Queenat90 with a specially commissioned Stamp Sheet of 4 generations of the Royal Family pic.twitter.com/ypzbjdB6T1

— BritishMonarchy (@BritishMonarchy) April 20, 2016

A family portrait to mark #Queenat90.

It’s the first time Prince George has appeared on @RoyalMailStamps pic.twitter.com/9xgoJwNU12

— Kensington Palace (@KensingtonRoyal) April 20, 2016

The Queen visited the Royal Mail near her home at Windsor Castle Wednesday to mark its 500th anniversary. 

The Queen views her new @RoyalMail stamp, specially commissioned for her 90th birthday #Queenat90 pic.twitter.com/vgVGBPBJMl

— BritishMonarchy (@BritishMonarchy) April 20, 2016

The stamps go on sale Thursday.