Australian Model numbering: Format: Saloon Yxx2Sn/ Van YJBAV

Character	What it signifies	What the characters mean
1	Country of Origin	Y = Australia
2	Make (Model)	M - Morris (Saloon) K - Morris (Cooper) [JB - Morris Van]
3	Engine size range	A - 848, 997, 998 G - 1098,1275
4&5	Body Type	2S - 2 door Saloon [V - Van]
6	Series/Mark	1 - Saloon, Cooper 2 - Cooper S Mk 1, Van Mk 1 3 - Saloon 4 - Cooper S Mk 2, Van Mk 2,

British Model numbering Format: x/A2Sn (Up to '69)

Character	What it signifies	What the characters mean
1	Make	A -Austin (Saloon) A - Austin (Cooper) K - Morris (Cooper) M - Morris (Saloon) R - Riley Elf W - Wolsley Horney
2	Engine size Range	A - 848, 997, 998
3&4	Body Type	2S - 2 door Saloon
5	Series/Mark	1 - Mk 1 - Riley, Wolseley 2 - Mk 2 - Riley, Wolseley 4 - Mk 1 - Morris 6 - Mk 2 - Morris 7 - Mk 1 - Austin B - Mk 2 - Austin