Illustrated mystery in Sweden, co-starring Martin Mörck

Today, a mysterious pictorial cancellation on a cover from Sweden, sent at a barely visible date to a French publisher.


The stamp was issued in 1997 and was part of a three-stamp series about marine. This 18th century Compass rose was engraved by Martin Mörck.

I thank in advance the one of you, readers, who will help me discover the significance of the pictorial cancellation. I see a stylised reindeer, or two human beings congratulating one another.