1296: Onyx, diamond bow brooch J.E. Caldwell & Co. Start Price USD 200.00 Current Price USD 750.00 Time Left - Bid Count 14 Buy It Now Price - Reserve Price - Start Time Saturday, December 06, 2008 End Time Saturday, December 06, 2008 Location Philadelphia, PA See more about '1296: Onyx, diamond bow brooch J.E. Caldwell & Co.' Description Current Lot Onyx, diamond bow brooch J.E. Caldwell & Co. Onyx and diamond bow brooch, J.E. Caldwell & Co. art deco Platinum bow brooch accented by forty petite circular cut diamonds and black onyx fill. L: 1 1/2 in. PROVENANCE: Property of a Pennsylvania lady. Place a Bid!