At Iliff Pre School in Denver the fuselage of a DC7 stand. It had the tailnumber N6321C.
was originally delivered to United Airlines in 1954 and was promptly named Mainliner Detroit. This DC7 flew with United Airlines until 1960, when she was sold back to Douglas and then server with various companies.
Ronald Regan used this aircraft when he was running for governor in California.
The Los Angeles Lakers used this aircraft on their pre-season tours.
The Oakland Raiders used this aircraft for the Super Bowl II game in Miami with the Green Bay Packers January 14, 1968.