According to a few sites I checked...there wasn't one. Here are the names/models I have been able to find:
Pre War (1908 - 1939)
Big Four (Model 1)
16H
Model 18
Model 19
Model 20
Model 22
CS1
ES2
CJ
Model 30
Model 40
Model 50 & 55
International
War time (1937 - 1945)
WD 16H
WD Big Four
Post War (1945 - 1970)
16H
Model 18
Model 19
Big Four
Model 500T
ES2
International
Manx
Model 7
Model 77
Dominator 88
Dominator 99
650ss
Atlas
Mercury
P11
N15C
Jubilee
Navigator
Electra
Superbike era (1967 - 197
Norton Commando models used Isolastic suspension and had 745 cc ("750") engines up to 1973 when the 828 cc ("850") engine came into use.
Commando Combat
Commando Fastback (1967-1973) just called "Norton Commando" until 1969
Commando Hi-rider (1971-1975) - targeted for American market
Commando Interstate (1972-1975)
Commando Roadster
Commando Interpol (1970 -1976) - produced for police force use
Commando Production Racer
Rotary period (1981 - 1992)
Interpol 2
Classic
Commander
F1
F1 Sport
RC588
RCW588
NRS588