CNs first mainline diesel, only 60 years young. Retired in 1971, hes the only remaining CN F3 unit. Rebuild brother GTW 9013 (CN 9171 F3AU) is in a museum as well:
http://tinyurl.com/55mvvg
The Alberta Railway museum has a unique opportunity to run an A-B-A F-unit set, all three ex-CNs wear different paint schemes however.