The Virtual GB Album

For a period of slightly over a year, mailers were permitted to continue using predecimal stamps on mail, including in combination with decimal stamps. This cover, mailed in July, 1971, has two predecimal 4d stamps along with a decimal 5p stamp. The predecimal 4d stamps were worth just over 1 1/2 new pence each, so the two of them total slightly more than 3 pence. Therefore, this cover has over 8 pence in postage, more than the airmail rate of 7 1/2p to the United States at that time.