Factory 4 wheel disc brakes on an early A

Ok, I haven't been around much, since I no longer own an A body, but I still love checking this place out once in a while. Hope you all are doing well!

I found something really interesting today. A guy that works for a Dodge dealership, over on Challengertalk.com is claiming to have had a couple "S" type Valiants, with factory 4 wheel disc brakes. :D

"both my Valiant S had 4 wheel manual disc brakes, 4 piston calipers in the front, kelsey hayes, i still to this day have a set kicking around somewhere, they were junk at best, always leaking or seized

Luke"
http://www.challengertalk.com/forums/f37/observation-involving-mopar-dart-84833/index3.html

This is news to me, and I remember these cars when they were new! Anyone ever seen one?