UPDATE: **SOLD** Was on eBay.
That might be a 1947 Luzon Red CJ-2A. An early Auburn Jeep-A-Trench is mounted on the back. One of the fellows is wearing overalls with “Lincoln City Line, Inc.” (Bus/Transit Company) on the back, a company that was based in Lincoln, Nebraska. Meanwhile, Auburn Machine Works was based out of Auburn, Nebraska. So, I’d wager that this photo was taken somewhere in Eastern Nebraska, probably in 1947 or 1948.
The Burke-Schneider Motor Company out of Lincoln, Nebraska, was also involved in this event. The company had a Willys dealership, which explains the fellow in the center with his white overalls. As early as December of 1946 Burke-Schneider was advertising the new CJ-2A (perhaps earlier, but I have no evidence).