Need help ID'ing a seat

I have a one piece back bench seat that came in my 49 Ford. The entire back tilts forward. Does anybody have any idea what it originally came out of. I scored a cherry original 49 seat for the car and this one has to go but I need to know what it is so I can list it.

 

'49 Henway?

 

I was going to say '50s pickup, but the ash tray on the back wouldn't be there.

Wasn't there a Plymouth or Dodge passenger car that had a one-piece back?
('47-'54?) Or a station wagon. (Mopar)

 

btt

 

looks like the one on my 53 mainline