General information on the United States stamps
1) Who authorizes USPS stamps?
The USPS alone is the only authority to issue United States stamps. However, the USPS has several authorized dealers or vendors who can make custom stamps such as Click-N-Ship and Stamps.com.
2) What denomination stamps are sold by the US postal service?
USPS postage stamps are available in the following denominations:
$0.01, $.02, $.03,$ .04, $.05, $.09, $.10, $.17, $.20, $.23, $.24, $.27, $.28, $.40, $.42, $.44, $.50,$ .59, $.60, $.61, $.62, $.64, $.70, $.72, $.79, $.80, $.83, $.94, $.98, $1, $2, $4.80, $4.95, $5, $16.50, and $17.50
3) What are non denominated American stamps?
USPS non denominated stamps are postage stamps that are not printed with face values although they have corresponding denominations or postage values.
However, non denominated stamps can be printed with letters called non value indicators. Thus, these are called non value indicator (NVI) stamps, and they are issued by USPS in the following denominations:
A = 15 cents
B = 18 cents
C = 20 cents
D = 22 cents
E = 25 cents
F = 29 cents
G = 32 cents
G Postcard = 20cents
H = 33 cents
4) Do USPS stamps ever expire?
No. Postage stamps, in general, do not have expiry dates. You can use your United States postage stamps – whether it’s an old or new issue – for as long as it is mint or it is not a used stamp or a cancelled stamp.
5) What is the face value of US forever stamps?
The USPS forever stamps do not have face values. These non-denominated stamps are valid for first class mails. They are called forever stamps because their value remains perpetually the same even if the postal service rates go up.
For example if you bought a forever stamp for $ 0.39 and the first class mail increases to $0.44, you can still use your forever stamp in your postage for no additional charge.