That tag that says Baker Rad & A/C is definitely not original. The radiator has at least been rodded out and maybe re-cored.
I believe the top tank should be embossed with a prefix like C4AE and a date code. Some concours guy will know.
Yeah there about 4 different C4_E or C6_E tags I have seen and several reproduction tags are available. I just thought that one was cool, wondered if the business is still going or maybe an older 'Stanger would remember the place etc