1896 1st Olympic Games. The postmark "ΣΥΣΤΗΜΕΝΟΝ" during the circulation of 1896 issue, inclouding a small registered cover franked with 40l. cancelled with private maritime seal, made by agent of Pireaus "NAVIGAZIONE GENERALE ITALIANA-FLORIO RUBATINO/AGENCIA du PIREO". The seal bears the misspelling "AGENCIA instead og AGENZIA". RR.