I have in my collection, a document talking about the US National Guard wanting some improvised armoured cars, and conducting talks with the British for help with the Armour technology involved. By the description this would have been commercial vehicles, with protection attached to it. These enquiries occurred in March 1942. However, I have no further details. Part of the problem I fear is the UK thinks of the national guard as a single formation, not a localised state level unit (such a concept is a bit alien to us). Thus they only record it as enquiries from the US National Guard. Would anyone here have any indication if this plan happened, and the National Guard got such improvised armoured vehicles? Or even photo's of such home built jobs which I can view to see if they matched the protection stated? Thanks.