StampNew.com got to know that a stamp bought nearly 50 years ago for the equivalent of just 21p has been sold at auction in Warwick for more than £23,000.
Auctioneers at Warwick & Warwick were amazed to see the 1/9d stamp from the 1967 Discoveries and Inventions collection receive such attention when it went under the hammer at the auction house in Millers Road.
In fact, experts described it as "the most important modern British stamp to be sold this century" and it was eventually sold for a final buying price of £23,600, including buyers' commission of one per cent.
The owner of the stamp bought it at a post office in Rochdale, Lancashire, to add to his collection and only realized the stamp may be valuable when he checked it at home.
He quickly returned to the same shop but by that time the rest of the sheet had been sold.
According to experts, what makes it so valuable is the orange colour having been missed from the stamp so that the Queen’s head is missing.
The stamp is in a vertical pair with a normal stamp above it and could have been from the bottom row of the sheet meaning this was potentially one of 20 that may have the colour omitted.