While looking over the exhibits on Virtual Stampex, I noticed two exhibits of military postal history: https://www.abps.org.uk/competitions/wwi-influence-on-austro-hungarian-postal-operations/ WWI Influence on Austro-Hungarian Postal Operations and, https://www.abps.org.uk/competitions/field-post-systems-on-czechoslovak-territory-october-1918-to-february-1919/ Field Post Systems on Czechoslovak Territory October 1918 to February 1919 by Mr Lubor Kunc Exhibits courtesy of: Association of British Philatelic Societies https://www.abps.org.uk/ Welcome to the ABPS – the …