OP
sparks1973
the old BS3036 type memera boards were notably better than the wylex equivelant.....Hmm, I had almost the exact same situation a few weeks ago...~50s MEM metal fuse box* with no bonding or earthing to be seen...rubber, the usual
Didn't give the slightest care about my warnings but it was a council job for a wetroom. So I was able to put my lot on its own CU, bond the water and (luckily) connect into a newish cut out for a PME (could imagine they were upset having what I guess was a old cast iron unit removed). I was also feeling generous so I even connected his metal fuse box to my MET because I'm such a nice bloke......still gave him a danger notice written in blood and covered in skull and cross bones
*speaking of which I couldn't help but notice how much better condition it was in compared to it's wylex competitors of the same era