this is from memory so dont count on this to be 100% correct. in the 50's cz made a duo (?) 25 acp but also made a model 1945 i believe it was a different gun. in the condition you describe it can bring as much as 400 to 500 bucks. maybe more to a collector they like most cz's were well made and a better choice than some of the "ruby's" coming from spain.