Are you just wanting to know what kind of condition it is in?
First is the finish. If it has a good finish, then it most likely is in good shape and has no moisture invading the wood. If it does have finish missing, it could create problems if not addressed.
Second is the limbs. When the bow is unstrung and you look down the limbs are they twisted? If they are not twisted, that is good. If they are twisted, they can be fixed easily.
Also, sometimes older bows will show stress marks in the fiberglass on the limbs, but unless the finish is compromised, this is usually not a problem.
Black Widow has been around a long time and has had several owners, and if the bow you have was built by the Wilson brothers, it could be a collectors item that increases in value as time passes. I'm sure if you call or write Black Widow an e-mail, they can take the serial number and give you a little history on your bow as to when it was built and the original owner.