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Signed Oscar Caplan
Cabochon synthetic sapphire, round brilliant-cut diamonds
Zinc, copper, silver, gold
Ring size 10 ¾; Gross weight 11.0 dwts
estimate: $500–600
result: $438
The Baltimore firm Oscar Caplan was founded in 1905. Oscar's son Marvin Caplan eventually took over the company, where he became a friend and jeweler to President Kennedy and his family.