Melos power amps? Help me ID

Hi there,

I am looking for some help identifying what I think are some Melos power amps.

My father, a lifelong audiophile, passed away in 2012 and we are finally getting around to liquidating some of his electronics. Almost everything has a model number on it, but I can't find anything on these.

There may be something on the bottom of them, but they are MASSIVE and probably weigh 150lbs each so even tipping them over would be daunting.

I have found a few pictures of Melos power amps, but the only ones I see look like they are half this size. As the company is no more, there is just no info out there. I am assuming that these in particular are especially rare though.

Link to the pics below. Thanks in advance for any help!
IIRC, those were the first of the Melos amplifiers that George showed at a CES show many moons ago. I think they were called the Melos Reference Amplifiers?

I remember seeing them somewhere, but that was such a long time ago that my memory has faded.

I don't think they made very many of them.