The Second Polish Corps was formed on Soviet soil and was composed of Poles, who were exiled to, and imprisoned in, various gulags and work camps located in the Soviet Union. After the German invasion of the Soviet Union in June 1941, the Poles were released from imprisonment. Eventually, Stalin agreed to transfer the Poles to the British forces in 1942. The Poles completed their military training in Iraq in 1943 and eventually arrived in Italy later that year.
Poczta Polowa 2 Korpusu = Fieldpost of the Second Corps.
Dopłata Zł. 4 na wdowy i sieroty po poległych żołnierzach 2 Korpusu =
4 Złoty surcharge for the widows and orphans of perished soldiers of the Second Corps.
Wartość 5 Zł = Value 5 Złoty.
Polish II Corps
Battle of Monte Cassino
The Battles of Loreto and Ancona (robertambros.com)
Land battles 1941-1945 (www.ww2.pl)
An Illustrated History of the Polish II Corps (dialspace.dial.pipex.com)