CTL marked British type road wheel seals?

[ajmac]

I’m stripping down and cleaning a NOS Canadian marked road wheel made by ford and dated 1944. Strangely it has the British type seal assemblies which are marked ford 44 with a CTL number but the bearing spacer is marked ford 44 with a TL number. Did MK2* Universals change over to British type seals or is this a case of Canadian wheel production to help out British manufacturing?

Also interesting is that as someone mentioned before, British wheel bearings are none standard with the outer race circa 1mm narrower than the inner where as Canadian / US bearings are normal. This Canadian wheel with the CTL marked seal assemblies has narrower seal carriers to compensate for the use of Canadian bearings!