How much is a 15 cent air mail stamp worth?

Answer 1

Without knowing which stamp you are refering to, it is impossible to tell. More than one country issued airmail stamps. The US issued about 6 or 7 priced at .15cents. Although most of them were priced between .30 and .50.

We also need to know whether the stamp is mint or used, condition of the stamp, is it on an envelope or not.

Answer 2

If it hasn't been used, you can always use it for 5 cents worth of postage.

Value is going to depend on how old it is, the condition and, of course, the specific stamp issue it is. It could be worth anything from a few cents (highly probably) to thousands of dollars (not very likely). Consult a stamp catalog at your library to determine the issue and a rough value.

Answer 3

The US has issued dozens of Air Mail stamps, many with a value of 5 cents. You will have to completely identify the stamp to find a value. A catalog, available in most libraries can help you determine the value.

Answer 4

It depends on the actual version of the stamped envelope. You can buy stamped envelopes at the post office. They cost a bit more than the postage to account for the envelope itself.

You will have to consult a specialized Postal Stationary catalog to fully identify the item and determine its value. It is probably worth less than a dollar, but there are ones that are quite valuable, several hundreds of dollars.

Leave the envelope intact!