I've got some letters I want to send out to the U.S which weigh 1.1oz, I've got a US global airmail stamp which covers the 1oz but I wanted to find out whether a 10 cent stamp would cover the o.1oz?
I hope you help me so I can send out straight away!
If you use the postal calculator on www.usps.com it'll give you a price for your item. Each Global Forever stamp is worth $1.20 so using the calculator will show how much more you'll need.