I forgot to mention that while catalogs have alot of great info,
the values listed are only for the absolute, most PERFECT possible
examples of the stamp listed. The catalog value is almost NEVER
what a stamp get RETAIL, much less wholesale, which a dealer will pay.
Think of CV being the value of an MS-70!
If yours is a 69, the value will be less,
and only go down from there.
The most common stamps often sell for 20-30% of CV (catalog value).
The best way to judge the TRUE fair market value of what you have,
and a way to judge how your stamp stacks up in condition, is to
check a large auction site and see what completed listings of that
stamp you are researching have sold for. Same way you would research
a coin value on
ebay... The best site I know of is
www.bidstart.com ,
it used to be StampWants, and is much more accurate in values than
www.ebay.com/b/260/" rel="nofollow">ebay. They used to be only stamps, but have branched out into coins
and other collectibles. Look up some of your stamps there to get a
feel for the values.