1877 cover fr. with 20l. blue, displaced C.F. (Kound. 63.16) and posted from "ΑΓΙΑ ΑΝΝΗ (61)*18 ΜΑΙΟΣ 77", post Office NOT MENTIONED in Koundouros study, via "ΑΘΗΝΑΙ (1)*20 ΜΑΙΟΣ 77", arr. "ΠΕΙΡΑΙΕΥΣ (2)*20 ΜΑΙΟΣ 77". (Hellas 51b).