1917 (29.11) Soldier's mail sent from Machin to Ruse showing bilingual 'Matchine' black handstamp alongside transit 'Koustendja' hand stamp together with all Cyrillic Constanta censor mark in red, fine and scarce (Image)

1917 (14.11) Picture postcard send by soldier from Skopie to Tulcha showing bilingual 'TOULCEA' arrival postmark in black alongside all Cyrillic violet military unit and censor marks cachets, fine and scarce (Image)

1917 (4.11) Picture postcard of Bucuresti sent to Sofia bearing single franking 5 st, violet-green (Michel 102) tied by bilingual 'BUCAREST' in blach hand stamp alongside showing double-circle large size Russe censor mark with coat of arms, fine and scarce (Image)

1918 (17.5) Picture postcard send by soldier from Braila to Sofia showing bilingual 'BRAILA' postmark in black alongside all Cyrillic with Coat of Arms military Varna censor mark in blue, fine (Image)