Is anyone near another gate guardian Canadian Cent or have any Hull number pics of any with known CFRs? I noticed something on the the topic tank and wondered if that's why whomever thought this would be the CFR number - as the CFR and Hull number both end in '190'. If there's another tank out there with a known CFR - I'd be interested to see if the last three of the Hull number also relate to that tank's CFR. Highly doubt for reasons everyone's already mentioned, but worth a try.