From the PDF file linked earlier the 48, in any variant, only appears once, as mentioned, in the "Discontinued" list from 1960.
The 1968 and 1973 documents don't mention a 48 anything at all.
Meanwhile ...
While looking at those documents ... what was a Ford Anglia Torino?
..... and a quick Google later .....
https://www.classiccarsforsale.co.uk...-anglia-torino
Well I never.