1915 military free-frank, with oval "Komando der K.u.K. Weichselflotille" in violet, sent from Sandomierz to Zagreb, boxed "Kriegsdienst Portofrei" handstamp alongside, fine and scarce usage from the Vistula River Flotilla (Image)

Est.$150

1919 (30 July) free-frank card from an Armored Train "Pociag Kapielowy Peltew" (bathing train "Peltew") with "Glowna Frontowa Poczta Polska" departure cds, sent by a soldier serving aboard the train to a family member in Ostrowiec, v.f., rare usage, signed Korszen, with his 2018 certificate (Image)

Est.$200