Not doubles but need some help...

[James Palmer]

General knowledge and values.

[Foxgun]

Originally Posted by James Palmer

General knowledge and values.

Doesn't really give me much to go on to try to answer any questions.
Try these websites:

http://www.airguns.net/classifieds/classifieds.php
http://www.network54.com/Forum/79574

Two of the major sites kind of like gunbroker and guns international for airguns. The second one has a forum like this board that may be helpful.

[Bill Murphy]

Blue Book Air Gun edition.