article_snippet: The couple, who moved to Mexico City two years later, never gave up hope of finding the 50 precious works which had been stolen.
article_snippet: But it seems the emotional reward may have been even greater.
article_snippet: However the dealer Frederick Mont refused to comply, denying all knowledge of the painting and thereby halting the investigation.
article_snippet: Without the strength and precision of the historic claim on one side and the compliance and co-operation of a gallery in New York on the other, this would never have been possible.'
highlights_snippet: But a New York art dealer denied all knowledge - and was only rediscovered last year .
  