Greek commemorative gold proof coin with a face value of 20,000 drachmas, for the 50th anniversary of the NO of 1940, Italian Invasion, maximum number of 1000 pieces, Bank of Greece mint, issued in 1990.
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Greek collectible gold proof coin with a face value of 50 euros, for the Temple of Poseidon at Sounion, maximum number of 1,500 pieces, Bank of Greece mint, issued in 2018.
