Getting Restoration Bren carrier MK2

[Yohay Shinar]

Yesterday I could have a look at this UC.
Here are the findings, plus a question to the knowledgeable ones:

Lower tub, Dominion bridge serial: 22543c
Ford of Canada serial: 23523
Ford production date: 14 Jan 1944

So far, matching numbers. However -
WD census is CT162220.

Per MLU's lists, CT1622** were produced in late 1942. The question remains as to how it was allocated to a vehicle produced some 15 months later.

Any ideas?

Thank you!