Watch in horror as a hapless TV journalist accidentally destroys a $5m postage stamp It's enough to make any collector cry... British pensioner George Hansworth had discovered an example of the famous British Guiana Penny Magenta stamp in his childhood stamp collection. Only one other example is known to exist and it is valued at $5m. It's held in a bank vault in Philadelphia, USA. A second example was discovered in the 1920's only to be purchased and subsequently burnt by the owner of the e