Now showing: Belgium - Parcel post stamps (1928 - 2003) - 1 stamps.
1939
Unpublished Stamp Overprinted "M 3 Fr." for Military Use
1. October WM: None Perforation: 13½ x 14
![[Unpublished Stamp Overprinted "M 3 Fr." for Military Use, type F]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Belgium/Parcel-post-stamps/F-s.jpg)
