... you mentioned that the 8k insulated 105 car was bogus.
Elden
Although I can't say the 8k ACF "hi-pressure" type car (OMI 3134) represents an actual car, I do have a scan of SACX 687, which is about the same size, leased to PPG Chemicals in the 1960's. So 105's of this type and general appearance did exist.
