Forever
The current value for a standard postage stamp is 46 cents.
The F series stamps were issued in 1991. The postage stamp has a face value of 29 cents.
20 cents extra?
Whatever the first class postage is. Today it is 49 cents
Face value of the original stamp was $0.20
The stamp-postage value of a stamp is visible on the front of the stamp.
The face value of the D stamp was 22 cents when issued in 1985.
15 cents.
96214455 doollars
value of silver stamp holder
Face value only