Peter McGoldrick has an excellent article in The Journal of the Orders and Medals Research Society Vol 55 Number 1 (310) March 2016 which I would commend to anyone with an interest in the subject.  In my view it is the definitive publication on the subject.  My congratulations to Peter.
   ​Yours Morgan

Edited 1 time by Peter Mc RIC Mar 19 16 10:14 AM.