S7, E15: Journalists Grace Dent and Amol Rajan search East Anglia for profitable antiques. In a Jaguar and TVR, the route to auction is packed with surprises at every turn -- from the forgotten Victorian electrical pioneer who gave us the toaster to the Essex town which changed its name to a spice that was once grown there. Purchases include Winston Churchill’s cigar and a wind-up tinplate toy rocket.