Paper deeds ARE still necessary if the title is still unregistered ... but hardly any unregistered titles remain. The whole of the country has been subject to compulsory registration since the early 1990s, so for land to be unregistered it needs not to have been subject to a conveyance on sale for at least quarter of a century now (and possibly much longer if it is in certain parts of the country). That is an absolute minimum condition.
When I trained as a solicitor in the early 1990s there was still a lot of unregistered land about, and I had to learn to work from deeds such as you have there, Suffolkboy. If you would like, I should be very happy to sit down with you and go through what you have, produce a proper Abstract of Title for you (if there isn't one there already) and help you to decipher the more tricky ones.