Given the column shift and the single speedometer, I think this is a DJ-3A.
“Lee Balterman (3 men in jeep driving) c. 1950
c. 1950 gelatin silver photograph. approx. 6.5 x 9.5 inches. Print has a few very minor crimps and a crack in image area, visible in raking light.
Lee Balterman (1920-2012)
Lee Balterman was an American photographer best known for his photographs portraying the city and people of Chicago. After briefly studying drawing and painting at the School of the Art Institute of Chicago, Balterman enlisted in the US Army Reserves and was stationed in England and France, where he worked as a hospital aide and later an an official photographer. After his discharge in 1947, he returned to Chicago, where he opened his studio and worked on assignments for publications such as Life, Time, Sports Illustrated and Fortune magazines. He died in Chicago in 2012.”