"Toke Nørby" wrote in message
...
A Danish collecter have asked us what the red squares means and why
they are put on these stamps:
http://www.qxl.dk/Cafe/Messageselse....398&IDM=631756
Thanks in advance for an explanation and
Happy New Year!


A guess - they are like the additional markings borne by aircraft of the
Polish manned squadrons in the Battle of Britain - perhaps some unofficial
overprint remembering them?