America didn't issue a 50¢ stamp in 1872. You will need to be a bit more specific on what country if you want to get an answer. Unless, of corse you are talking about revenue stamps, something I cannot help you with.
How much is a 1947 Thomas Edison 3 cent stamp worth?
How much is 15 cent martin Luther king stamp worth
5 cent
I have a 3 cent win the war stamp and i was wondering how much it is worth it is purple with a eagle and stars
They are probably worth 9 cents.
2 cent.
four cents
What is the value of a boston tea party bicentennial 8 cent stamp worth
It is worth $21
2000
... 34 cents
$2.00