Recently a Holland & Holland royal hammerless rook, with case, went for ~$3500 on GB. It had been rechambered to 22 hornet and was beautiful. (I gave up right below the final bid.)

Another one, same design, but retailed by William Evans, just went for $3,750 before premium, at Julia's auction. I also was the last bid below that one! This rifle had been rechambered to 35-30 and came with a matching scope.

Both were quite nice. I still don't own one!