Aeroplane Monthly 1993-09
J.Bartelski - What did happen to general Sikorski? (1)
Liberator II AL510, similar to AL523, the subject of this article.
Churchill’s Liberator II AL504 in Moscow. This aircraft was posted missing on a flight between the Azores and Ottawa on March 26, 1945.
This aerial photograph of the Liberator was taken the morning after the accident.