Greece, Kingdom. Otto CU 10 Lepta. Athens mint, 1857. Dies by K. Lange. ΒΑΣΙΛΕΙΟΝ ΤΗΣ ΕΛΛΑΔΟΣ, crowned coat-of-arms / Denomination and date within wreath. KM 29.
NGC Graded MS 63 BN (#6320872-017); only 4 examples graded higher. Scarce.
From the inventory of a UK dealer.