Another unusual car?

As I'm wrapping up the final few pages on the new website (for now) I was looking more closely at this photo of a J-1 (3019?) in Whiting Street Yard. I think this is a Kent Cochrane photo from c1940, but the window of time based on other elements in this, and another photo, is post-1936, pre-1945.

Is that a PRR X24 with horizontal sheathing and Youngstown doors?

The lettering in the upper left is "Autom/obiles"

Sure, it's a Pennsy car, how unusual can it be? Originally built 1913, the PRR rostered 2,000 cars. Not a lot for them, perhaps, but a lot of a distinctive class. But between 1934 and 1942 1,421 of the cars were converted to K7 stock cars. Only 318 remained in the 1938 ORER, and I've never seen another photo of an X24 with horizontal sheathing.There were still 289 in 1943, and 147 in 1948.