Two images from Harold Skaarup's great reference site came up while I was looking for likely places on this tank to sand in the hopes of finding a CFR. They're from RCDs in Germany in 1964. We kept the British WD/ VRN numbers on them in our service rather than using the 52-XXXXX type? First pic shows
"CDN 03 BA 47"
Second pic shows a trace of the British VRN on the very front of the hull (may well be the same tank as in the previous pic) but all you can really make out is the 'BA' part.
Were these just temp assign/ loaners from the Brits? According to my VRN list they'd be 1949/1950 tanks in the same series as a bunch that went to Australia.