42 cents.
A first class stamp costs 46 cents in the US. Each additional ounce is 20 cents.
15 cents
90 cents
5.00 dollars.
99c
The price for a US first class stamp is currently 49 cents. The previous rate for a first class stamp was 46 cents.
The lowest value US stamp was the 1/2 cent. A couple different versions were issued.
$0.20
$1.20
32.00
35.00
.75