Two unusual items there. The Nettle cooker control I've seen, although I'd love to find an example. I can't recall how many sets of input terminals it has, e.g. whether the socket outlets are independent. I think the BS specifies a single socket only when fed from the cooker circuit, so I suspect they are.
The multiway / grid switch I think is imported. The switch modules look Italian, possibly Bticino. I wonder whether this was in a house owned by an 'enthusiast' who specified unusual fittings? Again, the sort of thing I'm always on the lookout for.
Nettle - Started in the 20s as Victor Iddon, taken over by Aerialite, Nettle brand launched in 1950s, taken over by Delta, merged with MEM and the brand discontinued, although technically now part of Eaton.