I believe you are referring to the Bobcat pictured on Scott US #2482. It has a good value unused, it can be purchased for $7.95, a dealer might pay a couple dollars for it.
You can always use it for 2 cents worth of postage. Otherwise, a catalog needs to be consulted to determine if it is of value.
If uncancelled and used as postage it is worth (surprise) 4 cents.As a collectible stamp its value will depend entirely on condition, which must be determined by direct observation by an expert in stamps.
Forever
The current value for a standard postage stamp is 46 cents.
Two-dollar bills are generally worth two dollars. Adding a postage stamp to it wouldn't affect the value if the bill. The stamp itself, if rare, might be worth more than two dollars.
The F series stamps were issued in 1991. The postage stamp has a face value of 29 cents.
It is worth at least $5, as it can be used for postage for that amount. Depending on the version, it could be worth a great deal more. Very high value stamps such as this are not common, and some of the earlier $5 stamps can be worth as much as $3,900 for the Columbian $5. Consult a stamp catalog to identify the specific version and what its value might be.
These have a retail value (like at a coin show) of about $3 to $4.
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