Langford's 11th at Wakonda in Iowa is similar, with a cross slope. There is a sunken green at N Berwick, but with a wall that would really deflect balls.
All sorts of gca's from the Golden Age write about mounds and slopes just short of the green that might either propel the ball forward or knock it back. Hurdzan wrote about it in his book, too. I don't think its used much anymore, but Jay Morrish seemed to have put a small knob in front of at least one green per course. Besides the aerial game, more earthmoving and an emphasis on visibility and drainage compared to the old days had made this sort of old fashioned.
Looks like another feature that could be primed for a comeback, though! One worry is the "wet approaches" as discussed earlier.