Nice, Tony. I always refer to what I always thought was officially the "Princess Coronation" class, though, as shown in my Ian Allan Combined Volume of Winter 1960/61. Your "City of Manchester" loco is a city, of course, but certainly not a duchess. A lot of them are not Princesses either, eg 46256 "Sir William A Stanier FRS." Sorry to be pedantic but I really can't understand where the classification "Duchess" came from. In the BR Midland Region we spotters all called them "Coros". Please explain if possible, LC. You're the most likely to be able to do so.