Gurian Jumbo C series like this one
Tried Taylors, Fyldes, Martins in Grant's shop in Edinburgh (long gone now) as the guy kept passing them to me, tuning each in the time it took him to cross the shop floor. Then the Gurian which I'd never heard of and they'd just stopped making.
Exactly what I needed to accompany folk songs.
Use D'Addario jazz light p/bronze strings as fitted ever since. Tried others but always returned.