Paul:The 56/57 part called flange and pin which is the top part of an automatic column that bolts to the tube is B6A 3511-A fits 56/57 Ford and Meteor.
For 58/59 is part number B8A 3511-A fits Ford, Meteor and 59 Edsel (58 Edsel is same as t-bird)
Tube for 57 is B7A 3514-A fits Ford and Meteor
Tube for 58 is B8A 3514 -A fits Ford and Meteor
Tube for dual range is B8A-3514-B fits Ford, Meteor and Edsel
B8A-14308-A appears to be the circular horn contact which the spring brush makes contact with
marv
59 Edsel horn switch
59 Ford/Meteor horn switch comes with support bracket
58 steering column
58 showing part number B8A-14308-A
59 switch assembly
switch assembly 56 up
Switch part numbers