Depending on which of the one dollar stamps you have, it could be worth a great amount of money. One dollar stamps have been issued since 1892 when a $1 commemorative stamp (Scott #241) was issued. This beautiful showed Isabella Pledging Her Jewels to help Columbus finance his trip to the new world. If THIS is the stamp you have, then is is worth over $2,500 in MNH condition.
Forever
The price of one US postage stamp sufficient to mail a one ounce letter to any destination within the US is $0.44. That price is likely to increase soon. Note also that there are a great variety of US postage stamps available for various purposes. You can buy a single stamp with a value of $0.01, but you can also but a single stamp with a value of $7.80, $10.00, even more.
A first class postage stamp is 44 cents.
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.
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.
The postage stamp that had the word LOVE and a single pink rose on it, is a forever stamp. There was also one that had a value of .25 cents.
96214455 doollars
15 cents.
The value of an extra postage stamp is typically the cost of the stamp itself, which may vary depending on the denomination printed on it. It can cover the postage for an additional letter or package, or it serves as a backup in case the original postage is insufficient. Ultimately, its value lies in its utility for mailing purposes rather than any collectible worth, unless it is a rare or unique stamp.