No - Us stamps can only used on mail sent from the US.
US postage stamps do not expire -- they are always worth face value as postage.
You use the stamps from the country of origin. So if you are mailing a letter from the US to Australia, you use US postage.
That is what postage is used for. You use the stamps of the country of origin, which in this case is the US.
Forever stamps have the value of the current First Class Postage Rate. Currently they cost 49 cents. They can be used 'forever' to mail one ounce of US Postage.
Yes, the US will allow any postage stamps to be used at their face value. Used stamps cannot be re-used, that would be illegal.
Not in the United States. The US Postal Service approves the postage stamps.
No, you have to use stamps from the country of origin of the mail. In this case you will have to use Italian postage stamps.
No. When mailing items you use the stamps of the country of origin.
The US issued the first postage stamps in 1847.
No, you must use US postage stamps.
That is what stamps are for, to pay postage. In the US you buy postage stamps and put them on mail to any other country in the world.
ofcourse they do