the price was $2.00
$0.39
.44
As of October 2011, it is 44 cents for a first class stamp.
There is no price difference. The physical size of the stamp does not affect its cost. Currently the price in the US is 44 cents.
$0.47
.28 cents
25 cents
A first class postage stamp is 44 cents.
The price for a US first class stamp is currently 49 cents. The previous rate for a first class stamp was 46 cents.
The average price of a gallon of regular leaded gasoline in 1957 was $.31 cents.
The price of one US postage stamp sufficient to mail a one ounce letter to any destination within the US is $0.44. That price is likely to increase soon. Note also that there are a great variety of US postage stamps available for various purposes. You can buy a single stamp with a value of $0.01, but you can also but a single stamp with a value of $7.80, $10.00, even more.
The cost was 3 cents in 1957. That covered the first ounce of weight. It was raised to 4 cents on August 1, 1958.