Keith:
If your question has to do with a crossing bunker short of the front tier, here are some examples of courses that had them -
Blue Mound - had one in its early days, wasn't there last time I looked. Not sure if it was original.
Chicago Golf - had and still has one.
Fishers - no cross bunker, but you could say the terrain provides that feature.
Oakland - severe pinching of the flanking bunkers as well as two bunkers well short of the green.
Yale - same idea as Fishers.
The biggest confusion relating to this hole is that the mistaken thought that the Chasm Hole at Biarritz was its inspiration. Not only was the Chasm Hole no longer part of the course when CBM visited, he clearly notes that he took his concept for the par 3 Biarritz from the short par 4 12th Hole (the Chasm Hole, when it existed, was always part of the front 9). His writings on the template make no mention of a compulsory carry, but focus on the "hogsback" feature short of the green.
We do know his disdain for being able to putt your way all the way to a par 3. It isn't surprising that a cross bunker was added to some of their versions, just like how he "corrected" his version of the Eden at NGLA.
Hope this helps (I do have other photos and maps, but would have to search for them if you want to see them),
Sven