G'day Charlie,
If you have a copy of John Farley book *The Standardised war-time Jeep 2*, have a look on page 58 & 59.
It state's Canadian Army
Contract No CDLV-505
( Part order of 1,000 of 3,000 units)
Chassis No Range: MB 155498 - MB 156498
Registration: Unknown
Some numbers which appeared on this contract included,
CM4231488 and CM4231785
So Charlie I hope this is some help to you but like Chris state's you will need to fine some period photo's.
Cheers for now
Ian