Been going through some of my old stuff and bumped into a small box of Coast modules and there is one odd duckling mixed into the pack.

At first I thought it was for that infamous PC-Chips s3 board, but that coast has 9 chips while this one has 10 (it does look very similar though).
Otherwise it seems to have the same pincount and size of the more regular coast modules, same width of the area of the pins and it will apparently fit into a standard coast socket (though I'm not gonna give that a try, it's quite likely it's some kind of proprietary module)

I did try a google search, but somehow it was only a couple dead ends.

Does anyone know where this module might've come from or what it is? I know barely anything about it, except that I've had this particular one for many years.

I've added a pic, the part number didn't tell me a lot.