Hard to say without a clear identification, but chances are it has a nominal value with little chance of selling a single copy. Consult a catalog for specifics.
3 cent
"A " stamps are the same as 15-cent stamps.
1 cent
United States Postage 3 Cent Indian Centennial Stamp, "The Five Civilized Indian Tribes of Oklahoma, 1848-1948". When was this Stamp Issued?
40 cents
It may be possible to get the US Juliette Gordon Low stamp from a stamp collector, but it is not available for sale as a regular postage stamp. The 3-cent commemorative stamp honoring Juliette Gordon Low was issued in 1948.
The "H" rate makeup stamp is worth one cent US. It was used with the pre-rate change 32 cent stamp to make the new 33 cent cost of a first class letter.
i believe the value of a one cent stamp is worth 2 cents if used as postage but i have done research and believe yo can sell it for about 5 cents or so.
A three cent stamp will be good forever for US postage. Every US stamp issued since 1861 is valid for postage.
It's still worth 32 cents.
The US has issued many dozens of red 3 cent stamps. It will take a bit of work to identify which stamp you are referring to. I would recommend spending some time looking at a US Postage Stamp Catalog to identify the specific stamp. The bonus is that most catalogs will give you an idea of value.
Mint US stamps are worth their face value to use as postage, so use yours that way, if you need postage. Otherwise, your stamp has negligible value ( less than 25 cent retail) , but please do not throw it away! Keep it in your stamp collection for your children or yourself when you have more time. If you have more than one, you may be able to trade it for stamps of similar value. . Or give it to a collector friend. Collectors always appreciate the thought even it they do not need the stamp. .