how much is a usa forever stamp worth
25 cents.
A First Day Cover on the official Teddy Roosevelt envelope is worth about $7 or $8 depending on condition. If it's just a stamp on a plain cover, then it's worth about .50c. The stamp is worth .20 used of envelope.
In perfect condition - 25 cents.
Cachet refers to a design printed on an envelope. It is often found on First Day Covers and Special Event covers. Before collectors got really interested in the postmarks, First Day Covers were identified simply by the cancellation. Early cachet covers are unusual and bring a premium. Later FDCs and events without cachet are going to be worth considerably less.
A commercially produced First Day Covers of standard commemoratives like the Alaska statehood stamp are typically worth a dollar or two. They can be purchased for on eBay or through dealers. Higher value stamps, or specific cachet makers are worth more. A specialized catalog will list the value of a cachet or un-cacheted cover.
Scott US#1500 1501 1502 and C86There were four stamps issued in a set in 1973. If there is one stamp on the envelope, it is probably worth about a $1. If one envelope contains all four stamps, it would be worth a bit more.
First Day Covers in good condition tend to run around a dollar or two. Certain artists can cause a cachet, the design on the envelope, to be worth more.
On E-Bay its selling for about 15.00
On Cover refers to a stamp being on an envelope, canceled and used for postage. In many cases stamps are worth more on cover with special cancellations then they are mint. You should always consider carefully before removing a stamp from an envelope. It could be a First Day of Issue, or a commemorative cancellation. It might also be a special date that is related to the stamp or a historical event.
If it is unmarked, then we don't know that it is First Day of Issue. If the stamp in on an envelope, cachet, unaddressed, with a First Day of Issue cancellation, one can be purchased for about $12 to $14. You could probably sell one to a dealer for $4 or so dollars. You might be better selling on eBay.
Most collectors prefer to have the stamp in its original position, on envelope or document. This shows the usage of the stamp as it was intended and will have more value than the stamp by itself.