Lucky you.
They were Ben Franklin on the 5 cent stamp and George Washington on the 10 cent stamp.
2
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.
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.
I think that only Washington and Jefferson are the only US presidents to appear on 1-cent stamps.
George Washington was pictured on the first ten cent stamp. Benjamin Franklin was on the five cent.
The USPS no longer prints 20-cent stamps. They do print 10-cent and 5-cent stamps.
Yes, there are two cent stamps. They have been available almost since the first stamps were issued. For many decades the postage rate in the US was two cents. Today they are mostly used to add to other stamps to make up a new rate.
There are a lot of different 2 cent Washington stamps. The most common, and most the likely the type you have is worth maybe 10 cents mint and less than one cent used.
Benjamin Franklin - 5c Brown - Scott #1George Washington - 10c Black - Scott #2
Yes the post office sells 10 cent stamps. Stamps are available in a wide variety of denominations and not all offices will have a full selection. You can mix and match as necessary, so if they don't have 10 cent stamps, you could buy two 5 cent stamps.
Washington appears on a number of 2 cent stamps. Consult an online catalog for information to figure out which one you have. That will provide you an estimate on the value.