Map of the Gdańsk Bay in 1939. The Memel Territory was retransfered from Lithuania to Germany in March  1939.
Gdansk_Bay_Borderlines_1939_English.svg
Gdansk_Bay_Borderlines_1939_English.svg: *Gdansk_Bay_Borderlines_1939_English.png: Masturbius
derivative work: Justass (talk)
derivative work: Wierzbowski