Lighting might strike twice

[Dollar]

At gun show again this weekend and last 10mins of show an older gentleman approachs me.He ask if I know anything about parker shotguns.Given that I have been on a crash course over the last few weeks I said a little.
He had this ghe with him that was in pretty rough shape.It has damascus barrels,no tape with me so don't know length.Engraved on receiver with bird scene on all sides.Stock has plug repair on grip completely through.Forend has crack at top of release.Case hardening is gone but barrels look good in and out.
Can anyone give me a quick run down on this gun please.
Now for the kicker I am meeting him tomorrow to go over the gun for purchase or other.But he said he has more guns to show me some of which are parkers.I'll let ya'll know as soon as I fiind out.
He did have a hammergun with which I know nothing about.A W.M.Moore in preety rough shape.
I was thinking a $500 gun but should I bite?