Not for me!
It is an old Wylex consumer unit, remember the type with a wooden frame base, dark brown plastic cover and fuse wire carriers, which pushed in to insulated coloured slotted bases. The fuse carriers at some point were replaced with a more modern flip switch MCB, rather than the Wylex push- button MCB's.
He is now considering installing some RCD's to replace the MCB's is there one which fits the old Wylex please?