not even a fraction of an ounce
The Forever stamp is good for the postage for the first ounce of a letter. Additional ounces are less expensive. The Forever stamps were to created to prevent having to reissue stamps every time a new rate was approved.
A stamp is good for letters up to 1 ounce.
Just a single ounce. The second ounce will cost 20 cents.
At current rates $0.45 you get 1 ounce or 28.3495 grams before needing a second stamp which is an additional $0.20 for each ounce.
A first class postage stamp in the US is currently 44 cents for mail pieces weighing less than two ounces.
As of 2016, a 2.5 ounce envelope it would cost 93 cents (one Forever stamp plus two extra ounces).
50 ounces = 50 ounces.
56 ounces
In 1934 the price of a first class stamp was 3 cents. A postcard cost 1 cent.
For plain letter sized paper, it should only be 1 stamp. The max weight for 1 stamp is 3.5 ounces, and a 4 page letter (plain paper) should not weigh anymore than 1 ounce.
Stamp has only one syllable
There are 0.6 ounces in 0.6 ounces.