Thunderbirds framed postage stamps show Thunderbirds 1,2, 3 and 4. They use microlenticular technolgy so that each stamp is a hologram and the images change when the stamps are viewed from different angles to show either the numbers 1,2, 3 or 4 or the launch sequence of each Thunderbird vehicle. Yes they are genuine GB postage stamps. See the other framed stamps images to see the different views when the stamps are seen from a different angle