I actually bid on this a few months ago when it was listed as a "Grade 2 Damascus Parker" by the same seller. I called and talked to them about the gun. I nervously approached $4k as I would love to have a gun with Bernard Barrels. Here was the listing:
https://www.gunbroker.com/item/731989354
There were not any pictures of the dolls head extension so maybe the auction winner returned it. I would have been upset if I won when I saw the gun with that extension "repair", though I realize at $4k it would have been a good buy and I could have that issue fixed.