He certainly recorded for Parlophone - check this page:

78 Discography for Parlophone Records - UK - R3000 series.

Orchestra leader Frank Chacksfield accompanied him sometimes on 78s from 1948 (not with his orchestra I think!), so you might find something through him (I didn't on a quick look).

Here's a list of some recording: Popmusic-info - Frederick Ferrari

And there's a little discussion on this board: Whirligig - Obscure Singers of the 50s

I came across one 78 of his for sale, but I didn't see anything current.

Mick