[Lynn Eades]

To Show the differences;
first two pics. Canadian MkI and MkII.(Both the same) Thanks Brad for the use of your pic.
Nos.3 and 4 are British Carrier wheels. (they appear to be made differently)
No.5 is an Australian LP2/2a Wheel. It is similar to the Brit. wheel, but has heavier spokes, and boss.
Incidentally here is a little more: All three types of wheels, will fit any box .The british box internals are inter changeable with Australian boxes. ( there was a mod to the Aust boxes during production) Canadian boxes are entirely different (Ross is the maker, as was the wartime Jeep steering box)
The British housing does not interchange with the Australian one because the mounting holes are spaced differently.