Unless you are/were a member of the Grand National Quail Club the extra engraving on the barrel may add a little value; for non-members it could very well be detrimental to value.
We discussed this very listing several weeks ago here:
http://parkerguns.org/forums/showthread.php?t=34923
P.S. Don't sell the 26" Repros short, twenty-eight inchers are over-hyped.