Exchanged for cash? Probably not going to happen at the post office. But you might find dealers or collectors willing to buy them at a discount from face. Your best bet is to use them for postage.
Both are in the U.S. You need first class U.S. postage.How many stamps is that? One 42-cent stamp. Forty-two one-cent stamps. Four ten-cent stamps and one two-cent stamp. One 25-cent stamp and one 17-cent stamp.
The USPS no longer prints 20-cent stamps. They do print 10-cent and 5-cent stamps.
There was a sheet of 33 cent baseball heros stamps that included one of Lou Gehrig. Other countries have issued stamps, St. Vincent issued one about 1992.
There have been 25 cent stamps available since the late 1800's. The first class rate went to 25 cents in April of 1988.
In the US you can buy two 10- cent stamps, four 5-cent stamps. five 4-cent stamps, ten 2-cent stamps or twenty 1-cent stamps for 20 cents at most post office windows.
You can purchase 1 cent or 2 cent stamps.
That will depend on the value of the stamps you have. If you have one cent stamps you will need 190 of them. If you have ten cent stamps you only need 19.
22 stamps
If Charlie uses $1.29 in postage to send a package to his sister and only uses 16 cent stamps and 7 cent stamps, he will use 5 16 cent stamps and 7 7 cent stamps.
20,000 1 cent stamps with $200.
18 8cent stamps and 22 3cent stamps
you have to pay for them...1 cent each