Overview: An art dealer asks Diamond to make a clandestine investigation into the disappearance of a valuable crown which vanished from a safe on board a yacht.
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First Air Date: Jul 01, 1957Last Air date: Sep 06, 1960Season: 4 SeasonEpisode: 77 EpisodeRuntime: 30 minutesQuality: HDIMDb: 6.20 / 10 by 4 usersPopularity: 84.874Language: English