True, and I agree with you about State and Military District issed plates, but the UCRS was administered centrally, and plates were issued centrally by the Dept of the Interior. Army and Air Force later painted numbers onto vehicles, and discontinued plates (less steel, given the large numbers of vehs involved) but Navy (and other Govt Depts) continued to have plates issued by DofI for the entire war, and into the immediate Post war period. They were very uniform. But the plates pictured, which are very early registrations, depart from the 'norm', so I suspect were interim plates of some sort due to the heavy and unforseen demand for plates once the war started, and DofI were playing 'catch up' with the Defence plate applications.
Mike C
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