In my ever present enthusiasm for the New York Central, I decided to go through a few more old videos and historical books on it. I figured I had known almost all that was done with on the Hudsons, until I stumbled upon this one:
I found this recently online as well as in this video (around the 3:00 mark)
The design of this tender does look very much like the regular PT type used for the later J1 and J3 Hudsons as well as the Niagaras, but the coal bin bears more resemblance to something on the Union Pacific. If it wasn't for the familiar overhang at the back, I'd say they'd be almost identical.
Are there any experts who can give more info on these tenders and if they were used on any other NYC locomotives?