Thanks for the continuing replies.
I now have a list of 142 serial numbers.
Still not seen or heard of an ED model.
I have included the GG model which I believe is the Mk III.
G:- total 22 - 2213 to 32657
GA:- total 5 - 700 to 5080
GB:- total 21 - 1315 to 16539
GC:- total 5 - 244 to 3302
GD:- total 44 - 3821 to 34838
GE:- total 9 - 1283 to 2213 & 40628 to 44927
GF:- total 4 - 883 to 2786
GG:- total 1 - 846
E:- total 6 - 10414 to 12720 (also reported 1975?)
EA:- total 3 - 13036 to 17481
EB:- total 3 - 13036 to 19596
EC:- total 4 - 2233 to 3123
ED:- total 0
EE:- total 11 - 1293 to 7516 (also 623 'club')
EF:- total 1 - 10011
EG:- total 1 - 68
Thanks again for your contributions - Please keep them coming.
Roger
