Stamps with letter denomination values:
STAMP VALUE DATE of rate change
==============================
A 15 cents 5/29/78
B 18 cents 3/22/81
C 20 cents 11/1/81 (!)
D 22 cents 2/17/85
E 25 cents 4/3/88
F 29 cents 2/3/91
G 32 cents 1/1/95
H 33 cents 1/10/99
None are particularly scarce except for one H post card
rate which was printed but never issued. However a few were
actually used.
The H stamp is worth 33 cents in postage. In the US, they are still valid for postage at their face value. The US has never de-valued their postage stamps.
A first-class stamp is not the same as a forever stamp. A forever stamp holds the value of a first-class stamp regardless of how often the rate for first-class postage has increased. A first-class stamp only holds its face value.
It is not a make up rate stamp. It was issued for the first class rate, which was 25 cents.
They are not the same stamps. The ones maked First Class were for a specific postal rate, you would have to specify which one. The FOREVER stamps are valid at the first class rate regardless of what it is.
On 12 May 2008 the First Class Postage Rate was increased to 42 cents.
The value of the "H" Rate First Class stamp is 33¢ as per official United States Post Office information. The "H" Rate Make Up Rate stamp is 1¢. Check for the additional wording so that you know which one you have.
Cost of a postage stamp was dependent on the face value of the stamp. The most common rate stamp is for First Class Mail. In the United States 1922 that was 2 cents for the first ounce.
Whatever the current First Class postage rate is. In March of 2012, that is 45 cents.
Cost of a postage stamp was dependent on the face value of the stamp and the country. The most common rate stamp is for First Class Mail. In 1989 it was 25 cents for the first ounce.
Cost of a postage stamp was dependent on the face value of the stamp. The most common rate stamp is for First Class Mail. In the United States 1960 that was 4 cents for the first ounce.
Cost of a postage stamp was dependent on the face value of the stamp. The most common rate stamp is for First Class Mail. In the United States 1929 that was 2 cents for the first ounce.
The price for a US first class stamp is currently 49 cents. The previous rate for a first class stamp was 46 cents.
H make up rate stamp is valued at 1 cent. They were made because they didn't know if the rate increase would be 1 or 2 cents. The 'Make Up Rate' stamp was designed to be used with the existing 1st Class stamps.