This varies. There were seven stamps issued with the G on it. There are only four of them that you would actually have access to. There were two for the Post Card Rate for 20 cents. The First Class rate which would be 32 cents face value and the Make Up rate with a value of 3 cents (used with 29-cent stamps).
There is also the Pre-sort Bulk mail at 20 cents and the Official 32 cent stamp and a 5 cent Non-Profit stamp. There was a blue Old Glory stamp worth 25 cents, used for First Class Presort only.
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.
It is worth 32 cents.
The US flag is commonly referred to as "Old Glory."
The US Flag is called Old Glory.
It will depend on the specific type it is. The bottom line of the stamp tells you the type. If it has US Addresses only, it has a face value of 32 cents, the postcard is worth 20 cents and the First Class Presort is 25 cents. The make up rate stamp is worth 3 cents.
That will depend on the specific US stamp in question. They can range from being a nominal value of a few cents for most, but there are a few that could be worth thousands of dollars. You will have to consult a postage stamp catalog to find out.
Barely, probably the face value of the stamp.
The D stamp has a face value of 22 cents and can be used on domestic mail at that value.
Yes, they can be added together. The USPS often issues a 'make-up rate' stamp that can be added to the old first class rate to make the new rate. And the US has not devalued the postage stamp since the US Civil War.
it was old glory!
15 cents.
Forever
The F series stamps were issued in 1991. The postage stamp has a face value of 29 cents.
value is 25 cents