Hello Gary,
Welcome to the forum.
I would post your question in a new thread as this one is a few years old. You will get more members looking at it if it's new.

Although commemoratives are neat there doesn't seem to be a lot of interest in them. The only interest would be from a person with a connection to the agency that the gun is commemorating. From what I've read, value is based on the same gun in the same condition with the same features. There doesn't appear to be any added premium for a commemorative.