A striking provisional surcharge from Greece, this stamp features the iconic Canal of Corinth engraved in deep green, later overprinted in red with the charity inscription “ΦΥΜ. Τ. Τ. Τ.” and a bold 10 lepta surcharge applied over the original 5 lepta value. Issued during a period of national and military emergency, these surcharges supported the Red Cross and wartime relief funds. The design, showing a ship passing through the narrow canal under a prominent double-cross symbol, is one of the most admired images of early Greek philately. Collectors value this issue for its crisp typography, historic relevance, and numerous surcharge varieties.