I had a Parker Hale marked Ugartechea in .410 bore and it was a solid gun as are the 2 Ugartecheas that we still own. I sold it when we moved into a retirement community and decided for space reasons to only keep those guns that would fit into 1 cabinet so we're now down to 14 long guns and 8 handguns. Since I also have no place to reload here all my .410 bore guns and my 24 gauge along with guns that neither my wife nor I had shot in over 10 years were among those gifted or sold.
I just checked and both my wife's 16 gauge and my 28 gauge Ugartecheas have the "D 2" on the same lump as yours. The other lumps are similarly marked but the numbers are different. I have no idea what the markings mean.
