NY-12, The original Minx,was built for Howard Willets, she became Phantom in 1924 and was owned and actively cruised and raced by Dr. Gustav I. Steffen of the City Island Yacht Club, NY. Sadly, she was broken up on Long Island in 1986.

Sources:
Yachting Magazine, 3/55
WoodenBoat Magazine, 07+08/80
WoodenBoat Magazine, 05+06/05