Postage for a First Class letter mailed in the US to an address that is also within the US is $1.56. See the Related Links for the Postal Serveice on-line postage calculator.
Postage in 1966 was 5 cents for a letter up to one ounce. Fora post card it was 4 cents.
1 ounce
20 cents
Postage to Europe from the US is 98 cents for a one-ounce letter.
In 1955, the postage rate for a first-class letter in the United States was 3 cents for the first ounce.
It costs $0.98 to send a postcard or a 1-ounce letter to Aruba. It's $1.76 for a 2-ounce letter and $2.54 for a 3-ounce letter.
65 cents
A standard size, one ounce letter has a 45 cent postage rate.
The postage for a letter sized piece is .90 cents US up to the first ounce.
Postage to Europe from the US is 98 cents for a one-ounce letter.
Domestic postage is $1.39 for an ordinary envelope of uniform thickness.
$1.20 for a 1 ounce first class letter.