Strange 1940? Chassis VIN number

[Cometeguy]

I bought as chassis a few years ago with a very strange VIN number. It appears to be a 1939 to 1941 pickup. VIN is stamped in the normal place on the left frame rail, but the number very clearly reads" *9T 570*. This does not correspond to the coding for 85 hp, 95 hp, 60 hp or the numbers used on other 4 or 6 cylinder chassis. Also, it doesn't appear to be Canadian.

Anyone seen this before or have any answers?

Gary