Peter chiming in having just got back from my hols.
Les Evans basses are quite amazing really, extremely well made in fact built to survive a nuclear holocaust more like.
My LE is a real contrast in design being the most sexy smooth lines possible in the body and neck joined with an industrial 6 bolt fixing.
It was originally for sale (only because basses too many have I) but I'm presently holding it until the original owner has the funds to buy it back.
They are high quality instruments, made in Liverpool. Not much seems to be known about Les Evans himself. Mark (Bassculture) might like to step in and educate us all?
Peter