When did Morgan start offering wire wheels as an option on the 4 wheel range?
From photos I've seen, they don't really seem to be around until the mid to late 50's.
The 4/4 70th anniversary was supposed to have options that matched the years of production. The brochure at the link only shows wires as available on the 1970s model onwards
https://autocatalogarchive.com/wp-content/uploads/2017/01/Morgan-44-70-Anniversary-2006-UK.pdf