Thankyou for your reply you have helped soo much. Very appreciated

For US to Australia you need Global Forever Stamps, which are worth $1.15 each.
www.usps.com had a postal calculator so you can work out how many you need.

Hi all, just wanted to ask if anyone knows which stamps can be sent from America to Australia? And how many would need to go on the larger size envelope?
Read somewhere on here that it was best to buy them from ebay but i don't really know what I'm looking for?? As our stamps in Australia have a money value on them and the Americas ones i have found don't.
Also read about IRS? do people actually get replies using them as i was told at the post office that the person on the other end would have to exchange it at the post office, don't really see how someone would go to that amount of effort to get a signed picture back to me. If anyone could help it would be greatly appreciated.

Thanks