Evening All

I have an old Diana Mod. 23 .177 that I have had for many years, recently I thought about doing it up a little fo my 8 yr old daughter, and low and behold she wants a Ratcatcher instead I knew I shouldent have taken her to my local gun shop, rather than put it back in the attic probably never to see the light of day again can anyone tell me if this is a collectable gun and if it is worth anything, it has been very very well used with little or no blueing left but still cocks and shoots o/k.

http://i16.photobucket.com/albums/b2...sToDoUp001.jpg