Certainly, that is what they were created for, to serve as postage. Just make sure the total face value of the stamps equals the appropriate rate for the envelope or package.
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.
H. D. S. Haverbeck has written: 'The commemorative stamps of the British Commonwealth' -- subject- s -: Commemorative postage stamps
In the US postage stamps are always valid. You do still have to have enough to cover the current postage cost. And Forever stamps are always valid for one ounce of first class mail, regardless of the actual cost.
All stamps issued by the government since 1861 are still valid for postage.
Face value for postage remains valid until the government de-values them. In the US, stamps issued since 1865 are still valid for postage. The value to a collector varies based on supply and demand.
The Vatican does issue postage stamps. They are only valid for mailing something from the Vatican itself. They can be purchased through dealers and online.
It is expected that there will be an increase. Most of the First Class stamps currently available are Forever stamps. They will be valid after the postage rate goes up.
Albert F. Dawson has written: 'Joint resolution for a special Lincoln postage stamp' -- subject(s): United States, On postage stamps, Resolutions, United States. Congress, Commemorative postage stamps
They are still valid as 20 cents worth of postage. You would have to add additional stamps to the envelope to meet the correct rate.
Yes, first-class stamps are always valid for mailing letters within the same country, regardless of when they were purchased. However, the cost of postage may increase over time, so additional stamps may be required if the postage rate has gone up since the stamps were purchased.
All Newfoundland stamps are valid for postal use at their face value because they have not been demonetized (their use denied) by Canada.
Stamps are divided into two primary categories. Definitive and commemorative. The commemorative issues are the issues usually in smaller sets that commemorate something of someone for example trains people historical things. The definitive sets are items at are much larger sets and are used for postage and have many more values. Note that both can be used for postage. __ If you want to see all the commemorative stamps, you need to consult a catalogue because there are thousands of stamps, far to many to list here. Collections Canada maintains a website that shows all Canadian stamps issued. If you don't have access to an up to date catalogue, you could go there.