History: Aircrew of the Dam Busters, involved in Operation Chastise in WWII. Date unknown [7200x3000]

http://i.imgur.com/41VjWgN.jpg via /r/HistoryPorn http://www.reddit.com/r/HistoryPorn/comments/4cgzq6/aircrew_of_the_dam_busters_involved_in_operation/