When I toured Jacques Littlefield's Tank Ranch they had, what I believe to be, this exact tank. They told the story of how it had been lost in the river and sat there and they went to see if it was still there and arranged to get it removed and returned to California where they restored it.

If someone was so motivated, they could probably go back to the internet archives of the auction that happened after Jacques died to find a picture of both the restored tank and its providence.