[r-t] Exceptions to the Extension Rules

[Rebecca and Tony Cox]

Group 1. Valid extensions with different names
Reverse Carter Doubles*, Birmingham Carter Triples,  Caters, Cinques

Group 2. Invalid extensions with the same name
Carter Doubles* and Carter Triples, Caters, Cinques

* According to my 1961 Collection of Doubles Methods (issued under the
authority of the Council by Felstead, Golden, Kippin and Lewis) what is now
in the CC method list as Reverse Carter Doubles is actually Carter Doubles
and Carter Doubles is Reverse Carter. The 1961 collection has what I think
is the generally accepted version for Carter: Stedman with an extreme place
made in the middle of a quick 6.

Tony