The best way is to consult the USPS web site. They list all of the stamps issued without a value. These stamps can still be used for postage at that value, so other stamps have to be added. They can only be used for US addresses.
The best place to look is the USPS web site. They have a page with pictures of all the stamps without numbers or letters on them. Look for non-denominated postage and compare the pictures.
The H stamp was the one with the Hat on it. It has a face value of 33 cents.
A G stamp has a face value of 32 cents. You would have to add 27 cents to mail a letter with it.
4 cents. Put it on your next letter.
The value at purchase was 63 cents wich was the value of a 2 OZ letter but I would like to know the current value, if it is more than 63 cents.
That stamp was issued in 1985. It has a face value of 22 cents.
If memory serves, it is the oversized, mainly black and white stamp you are asking about. If so, sorry to say, but you can use it on a letter. If it is used, even less value.
Five cents was the value. That was the cost of mailing a half ounce letter.
According to the website United States Non-denominated Stamp Values, the face value is 37 cents.
The price of a stamp went from 15 to 18 cents. So the face value of the B stamp is 18 cents. The B make up stamp would be worth 3 cents.
The F stamp was a picture of a Flower. They matched the picture to the letter. It has a face value of 29 cents.
The D stamp would have a face value of 22 cents. There was a make up rate stamp with a value of 2 cents.
F= 29 cents. The rate for one ounce domestically is 44 cents. I am assuming you have Scott #2521, which has a value of 4 cents. So if you have 11 of them you can mail one ounce.