First Day Covers are worth more than ordinary covers. Stamps bought on the first day themselves, without cancellations, cannot be identified as being issued on the first day. Leave them on the cover if you have them!
you need to put $1 worth of stamps on the postcard. If you have trouble figuring out how many stamps this will take (its different depending how much your stamp is worth) just go to a US Post Office and ask.
In most cases, mint stamps, those that have not been used, are worth more. In a few cases, used stamps are more valuable. Modern used stamps are typically worth very little, but there are exceptions and the most valuable stamps in the world are used.
Commercially produced First Day Covers of standard commemoratives like this are typically worth about a dollar. The Bicentennial stamps may bring a slightly higher value. Higher value stamps, or specific cachet makers are worth more. A specialized catalog will list the value of a cachet or un-cacheted cover.
Commercially produced First Day Covers of standard commemoratives like the Challenger 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.
Air mail stamps are good for ordinary postage- your stamp is still worth 7 cents if unused.
Not really. It might be of interest to a collector, but without the cancellation, it isn't worth anything other than the value of a used stamp.
Cancellation refers to the postal markings printed on stamps after they are mailed. Stamps with these marks on them are known as "cancelled" or "used" stamps. Yes, they are worth something to collectors, but their value varies widely, from almost nothing ( say 5 cents per hundred) to thousands of dollars.That depends a great deal on the stamp. In general, stamps on cover are worth more than those off of the cover. To determine value, you would have to consult a catalog or dealer.
No, it is only worth 32 cents.
Yes. 44 cents.
It depends on whether there is one stamp or a block of all the varieties on the cover. Commercially produced First Day Covers of a single commemorative like this are typically worth a dollar or two. A pane with all will be a bit higher. Higher value stamps, or specific cachet makers are worth more. A specialized catalog will list the value of a cachet or un-cacheted cover.
The US has issued a single clown circus stamp and a set of four 29 cent stamps. The 5 cent stamp is Scott number 1309 and the First Day cover is cataloged at $2. The 29 cent set is Scott number 2750-2754 and a First Day Cover with all four of them is cataloged at $3.
$1.50 (Scott Specialized Catalog of US Stamps 2011, page 405(First Day Covers))