You didn't say it had a Britsh registration! That's curious, is it a right-hand drive?

The "W" means it was registered between 1 August 1980 and 31 July 1981. It is on the DVLA database www.gov.uk/get-vehicle-information-from-dvla

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Showing as a 1981 car, which matches with the Morganville registry (the chassis numbers before and after yours are also 1981).

It looks like it spent a couple of years on British roads before being exported to the US. "NP" is indeed Worcestershire so maybe it was a factory demonstrator?

2011 Morgan 4/4
1932 Austin 7 Chummy