Newland medieval bell

[David Hope]

At Newland, near Malvern, there is a medieval bell which, according to Walters, is inscribed + S C I THESSILIAY. He indicates that this is a representation of St Tyssitio (presumably Tysilio, as in Sellack). Can anyone confirm this attribution which seems interesting (at least to me) as Malvern is some distance from present-day Wales?

Best regards

David