Σέρρες: POSTAHANE-İ SİROZ 1278 negative seal in old-Turkish (C&W S2-49, (Post Office of Serres), faint blue on entire folded letter with dateline in Greek "Σέρρες την 12 Απριλίου 863" (12-4-1863) sent to Θεσσαλονίκη (Salonica), F (RRR) Σέρρες: SERRES JUIN.19.[92] bilingual postmark (C&W C2-Ad32, black on small cover with 1pi 1892 sent to Budapest Hungary, via CONSTANTINOPLE ARRIVEE 20.JUIN.92, VF (B) Σέρρες: AN CANİB-İ POSTA-İ SİROZ 257 negative seal in old-Turkish (C&W S1-48, (On behalf of the Post of Serres), blue on entire folded letter with dateline in Greek "Σέρρας την 19.Φεβρ.1857" (19-2-1857) sent to Constantinople, ex Cronin collection, F (B) Σέρρες: SERRES 16-8-907 bilingual postmark (C&W C3-54, black on 20pa 1905 postcard stationery sent to 1/1 WIEN 1 6b 19.8.07 Austria (blue), ex Cronin collection, VF (C) Σέρρες: SERRES 12-1-909 bilingual postmark (C&W C3-54, faint blackish violet on picture postcard with 20pa 1908,
