No, the United States Postal Service does not sell foreign postage. The reason is that postal policy specifically says that if you are mailing something from the United States to a different country, you must use US postage. Post offices will not process mail with foreign postage on it unless it is coming into the USA from a different country. So there is no reason for the USPS to sell foreign postage for this reason.
Answer: The USPS actually has to accept foreign postage from any country through which the mail piece is going to travel. This is guaranteed by the Universal Postal Union (UPU) agreement. The UPU is a UN agency that regulates the price of International postage. If you use foreign postage stamps when mailing something to the country that issued the mail, then your mail will be shipped there and the foreign country pays the USPS.
If your local post office rejects the mail piece with foreign postage, then you should let them know that such refusal is in violation of the UPU agreement and possibly other law between the Nations.
While I lived abroad, I have often seen British and German postage meters/stamps on letters from the IRS.
you can buy coupons at the post office that are redeemable in foreign countries for stamps
No they will not buy back stamps
Its a post office, so anything postal from stamps to envelopes.
The post office, or some tabacchi shops
Postage stamps. It is the post office.
At Sainsburys etc
One book of stamps can cost approximately $10 at the post office. This will include 20 stamps that are personalized. You can buy larger amounts at $.48 per stamp.
Yes the post office sells 10 cent stamps. Stamps are available in a wide variety of denominations and not all offices will have a full selection. You can mix and match as necessary, so if they don't have 10 cent stamps, you could buy two 5 cent stamps.
No, but you could buy some 5 cent stamps and make the current 44 cent rate.
The Post Office is not a charity. They don't work for free. When you buy stamps, you are paying the Post Office for the charges incurred by them for handling and processing your mail.
Stamps in the US can always be used at face value. The post office won't buy them back, they will tell you to use them.
The Post Office often will have artists provide drawings to specific requirements for various stamps. Sometimes contests are held and the winner gets their artwork on a stamp. For some of the state stamps the individual state held the contest.