Notes on anti submarine actions, reports and ciphers, repairs, 1943

MAR.A - Documents of the Polish Navy, 1925 - 1947 MAR.A.V Polish Navy in Great Britain 1939 - 1947

Notes on anti submarine actions, reports and ciphers, repairs, 1943 MAR.A – Documents of the Polish Navy, 1925 – 1947 MAR.A.V Polish Navy in Great Britain 1939 – 1947