In every episode of 'Gilligan's Island' the actor who played the Skipper had something on him, visible to the viewer, that belonged to his father, Alan Hale, Sr. What was it?

Skipper's Ring, The - On the sitcom GILLIGAN'S ISLAND/CBS/1964-67 Alan Hale, who played Skipper Jonas Grumby of the S.S. Minnow, faithfully wore an emerald and diamond Pinky ring during each episode. The ring originally belonged to his father, veteran film actor Alan Hale, Sr. His son wore the ring to honor his father's memory.
http://www.tvacres.com/jewelry_skipper.htm