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In page Dolly Sisters:

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While in Europe, the sisters became well known for gambling excursions at casinos and horse tracks which were usually financed by wealthy admirers. They won $850,000 in one season at Deauville.[3] Of the two, Jenny Dolly became legendary for her winnings. She won 4 million francs one evening in Cannes, which she converted to a collection of jewelry; she then went on to win another $11 million.[3] On other occasions, she won $100,000 at the horse track, $500,000 at baccarat and $200,000 at roulette. With her winnings, Jenny Dolly indulged in her passion – buying expensive jewelry. Jenny's collection of jewelry, which she acquired through her winnings and from numerous suitors, became legendary.[citation needed]