Now What I need to now what is this black loco with the white numbers supposed to be?
As I recall it's a freelanced C-C. While most of Gil's diesel roster was more conventional -- AN F's, Kemtron GP's, 2 railed Lionel, CLW, etc -- he did build some diesels [ and I think a GTEL ] from scratch / kitbash; these were usually "inspired by" some prototype, but were not models of them. Further, unlike his steam builds*, these were not as highly detailed, and sometimes, as I recall, seemed to have spotting features from more than one builder.
I may have briefly owned the loco in question; I attended the [ train ] estate auction and I remember buying two C-C's; either
A. I had a shopping list from a friend who couldn't attend who had a weakness for A-N diesels, and a C-C was included in one of the A-N lots, or
B. I was sitting next to a friend and wanted to draw his attention to a conversation between two of "the usual suspects", so I nudged him in the ribs. He thought I wanted him to bid on the lot then being auctioned, so he did -- and won. I asked him afterwards why he thought I wouldn't have placed a bid myself if I was interested in it, and he said something like "Well, I thought you were telling me I should buy it". So naturally I paid for it, and since it had a good drive train [ I think everything Gil built did, of course ] the same fellow for whom I purchased the AN F's gladly took it.
Best regards, SZ
*I never forgot Gil telling me that the PRR J1 he built took second place at an NMRA National -- and that he felt it would have taken first if he had lettered it for the Pennsy instead of the American Central.....
Correction / addenda added 12/31:
After writing the above I found the listing for the train auction. It mentions an "0-scale Nat. Cov. Dearborn MI in the 80's" for the J1, so perhaps I misremembered what Gil told me. [ But wasn't the 1980 ( I think ) 0 National at Dearborn held in conjunction w/ the NMRA National......]
Also there is no mention of a GTEL in the auction listing other than a 3 unit MTH one. I thought I remembered a veranda turbine in AC green, but I am probably wrong, although some of the auction descriptions are sparse and/or somewhat misleading. However, some of Gil's locos found other homes prior to the auction through bequests, etc.