CRT 3042 was a Lake Street car. According to Don's Rail Photos, "3001 thru 3100 were built by Gilbert in 1893 as Lake Street Elevated RR 1 thru 100. In 1913 they were renumbered 3001 thru 3100 and became Chicago Rapid Transit 3001 thru 3100 in 1923." (George Trapp Collection)