Thanks Guys it is about 3 grams under 100grams so the price you quoted will help a lot,all I need now is somewhere to purchase stamps as it is cheaper than ircs.If anyone knows where to purchase U.S stamps in the U.K let me know {up}

A C4 at 100 grams would cost $3.76 in postage. If you could narrow it down to exactly how many grams, it could be lower.

You can check any rates here:

http://www.usps.com/prices/first-class-mail-prices.htm

If you cannot obtain the US stamps in the UK, and do not know anyone who could mail them to you, you can always purchase an IRC (International Reply Coupon) which allows the recipient to exchange it in their own country for one unit of international postage.

Hi I have been collecting for a year now and have sent a few to celebs in the USA but stupidly put UK stamps on the S.A.E to return to me here in the U.K (I have had none back but I know I made a mistake).So my question is if I send a S.A.E to return to U.K how much postage in U.S stamps would I have to put on for a C4 sized hardback envelope weighing less than 100 grams.Also where can I buy U.S stamps in the uk.Thanks in advance for your help! 8)