Meirionnydd Nant Conwy (&predecessor) (74 to date)
Most of it - the 'Nant Conwy' part was in a Tory seat until 1983.Did the Tories lose that seat in
1983? And if so, were the same lines used as in 1979?
Caithness Sutherland and Easter Ross (if that still be the name) ought to be there as well (again, since '83).
Same question except that also I'm not sure what party those seats (or that seat if it's just a long name that looks like it could be two constituency names) were held by just before beginning their streak of non-Tory, non-Labour representation in 1983 or 1987.