UPDATE: Ooops. It turns out I had forgotten that I’d already posted this photo last year …
This photo can be found within the Los Angeles Public Library Photo Collection. It depicts a CJ-3A owned by the Antelope Valley Sheriff’s Posse. There are other jeep-oriented photos as well held by the library.
https://tessa.lapl.org/cdm/search/searchterm/HCNVT_d042_f11_i9 .. Los Angeles Public Library, November 03, 1953. ….. Caption reads: “Members of Antelope Valley Sheriff’s Posse No. 11 take their jeep and mobile kitchen on trips into isolated areas to search for lost children and hunters. The men serve as volunteers in the rescue work on a 24-hour-a-day schedule. Viewing the new 1,200-watt auxiliary power plant are, left to right, Capt. R. M. Boyd, Lancaster Station, Los Angeles County Sheriff’s Department, commander of the posse; Sgt. R. F. Brown, co-ordinator, and Capt. Jack Bones.”