Sue: The 106,XX series of film were made in the 1950's. The 991,XXX Episcopal Wills 1660 & later series were filmed around 1979. A company named EP did the filming of most of the 1659 & before Episcopal Wills.
I don't doubt there could have been some Wills, or even Books of Wills missed. I would like to know of any early Wills from either Court that have not been filmed.