What do you think of this?
Quote:
According to Stanley Gibbons, the compound 10-year return of the firm's GB Rarities Index between its inception in 1998 and its 10-year anniversary in 2008 was 245.2%, which meant rare stamps out-performed gold, the UK housing market and returns on investment on the FTSE 100 through that period. The growth translated as an average annual compound return of 13.2% over the decade.
An interesting article on the subject at this link:
http://www.minyanville.com/special-...011/id/32476