It may have value if you can find someone to buy it from you. A postage stamp has value, but not anything that you can demand. You can't hand one to a clerk in a store and they have to take it.
postal currency
On a US Postage stamp. On US postage stamps, and currency whether paper or coins.
Laotian currency changed in 1955 - 100 cents = 1 Kip
No.
Unissued postage stamps would be hard to catalog, as they were never made available to the public. If you meant unused postage stamps, all the catalogs will provide pricing guidelines for used and mint stamps.
Yokiti Yamamoto has written: 'Japanese postage stamps' -- subject(s): Postage stamps 'Japanese postage stamps (for philatelists)' -- subject(s): Postage-stamps
They are still valid for use as postage as long as they add up to the proper postage. If you check USPS regulations Postage due, special delivery and certified mail stamps are NOT valid as payment for postage.
No - Us stamps can only used on mail sent from the US.
Florida does not have stamps. The Federal Government issues postage stamps, not the individual states. They can be used anywhere in the United States.
Yes, every country uses postage stamps.
US postage stamps do not expire -- they are always worth face value as postage.
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.