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 F series stamps were issued in 1991. The postage stamp has a face value of 29 cents.
US postage stamps do not expire -- they are always worth face value as postage.
"A " stamps are the same as 15-cent stamps.
Flag stamps were 42 cents face value, they were supposed to be forever stamps, postage never to increase from that 42 cents, but that flew out the window real fast.
Face value for postage remains valid until the government de-values them. In the US, stamps issued since 1865 are still valid for postage. The value to a collector varies based on supply and demand.
$12.50
It may have value if you can find someone to buy it from you. A postage stamp has value, but not anything that you can demand. You can't hand one to a clerk in a store and they have to take it.
Ordinary stamps were 3 cents each in 1916 .
15 cents.
Gilbert E. Lockyer has written: 'Colonial stamps' -- subject(s): Postage stamps
Peter E. Newell has written: 'Stamps of Alderney' -- subject(s): Postage stamps
You can use forever stamps for an ounce of postage forever. They never lose their value for one ounce of postage.