375rd Heinrich Köhler auction - Day 1

1876, Unpaid entire folded letter from Galatz 23.5.76 via Austrian Lloyd Agency Constantinople 26.5, Greek Post Office Constantinople 12.5.76 (new style calendar), Piraeus 17.5.76 and Athens 17.5.76 to Galaxidi, with circular "T" and Greek black handstamp "60", paid with 60 l. postage due, tiedby blue dotted "46", very unusual and very fine