UP 25091 is a CA-3 steel cupola caboose. It was built as UP 3791 in July 1942 and was renumbered 25091 in April 1959. The car was retired by Union Pacific in July 1973. It was moved to Chino, California to become part of an MJB Realty office at 4790 Riverside Drive, the same owner of UP 25037 in Brea and the unidentified UP CA-3 in Yorba Linda. Images taken on August 17, 2007.