PSZnZ Envelope of a Letter to Katowice from the Polish Army Camp in Coetquidan - Polish Army in France 1940

A field military envelope from the period of the formation of the Polish Armed Forces in France in late 1939 and early 1940, addressed to Mr. Valerjan Kotowicz serving in a gendarmerie unit (Gendarmerie C.3). The parcel was addressed to Camp de Coëtquidan in Brittany, which was the main training and organizational center for the Polish Army after the September campaign. The envelope shows a number of historical markings, including the handwritten abbreviation FM (Franchise Militaire) indicating postage exemption for soldiers, the round stamp of the French military censor's office with the inscription "Autorité Militaire," and the bilingual (French-Flemish)
Dimensions: 10cm x 14cm.
Overall condition as shown in the photos.