I know what Ken Hill's, and every other Morgan history book quotes.
However, there is evidence that very few cars actually had the 4-4 designation, but it stuck - a bit like the wood chassis myth. It's one of those things lost in the mists of time.

Graham (G4FUJ)

Sold L44FOR 4/4 Giallo Fly
'09 Gen2 MINI Cooper ragtop
'90 LR 90 SW