What do you collect? Matchbox cars, old Jackie magazines, hats? In November 2009, a collector paid the princely* sum of $53,775 for a grey Fedora hat in a Dallas auction house.  A lot for a hat perhaps but this hat had been perched on an infamous head – that of nightclub owner and murderer, Jack Ruby. On Sunday 24th November, it will be 50 years since John F. Kennedy’s (supposed) assassin, Lee […