375rd Heinrich Köhler auction - Day 1

1877/82, 2 unpaid entires from Austrian Levant to Greece, the first an entire letter from Mytilini (Lesvos island) to Syros, entrusted to the captain of a Lloyd ship, posted from "SPED. POST. PRESSO LLOYD SMIRNE 17/12 77" with 1875, 60 lepta postage due stamp, tied by dotted "67" , the second a letter sheet without side flaps from Salonica to Athens with 1876/90  60 l. postage due stamp and small "T" marking, both unusual & very