Question On Colonial Electrotype (Maybe?)

Hi, all ~

Here's a piece I picked up for a buck from a dealer's junk box at a show I attended back in the mid-1980's. It was clearly marked "COPY" on the flip, although not on the token itself, so I went into this with eyes wide open, picking it up as a curiosity for my Conder collection. It is, after all, a Middlesex D&H 307a, but it's also long been regarded as a U.S. Colonial piece, Breen 1165.

Now that I'm retired and getting ready to re-establish my presence as a seller on ebay in order to liquidate several non-core collections, I'd like to be able to nail down with more precision what kind of copy it is, and whether it can be attributed to a particular maker, or perhaps to a particular era.

The granularity and lamination noticeable in the flan are two key markers, I would think, and there is a faint seam around the edge that looks under 15x magnification as though someone may have attempted to disguise it. I'm guessing it's an electrotype, but I have nowhere near enough background on repros and counterfeits to substantiate that hunch.

Anything you can contribute about this item and its reproductions will be greatly appreciated. I know there's sort of a small market out there for electros of Colonials with certain pedigrees, so any thoughts you might have on market value will of course be helpful as well.

For comparison purposes, inserted below my images will be shots from a current ebay BIN listing for a PCGS-graded AU-55 example.

Thanks for any help you can share!

Best ~
Tom