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An entire complement of Spitfires Mk. IXC of No. 312 (Czechoslovak) Squadron RAF on the line at USAAF Station 112 Bovingdon in Hertfordshire, 30 March 1944.

Although it could be established that the photo had been taken by the US personnel at Bovingdon, the reason for the presence No. 312 at the airfield is not explained. Probably the squadron made a friendly visit or had to land there due to some weather trouble at their home base at Mendlesham, Suffolk. Bovingdon was a B-17 operational training base and the home of 1st Combat Crew Replacement Center for B-17 units of the 8th Air Force.
[US National Archives]