Rocker Arm Identification????

Search for photos of Magnum engines, both V-8 and V-6, 3.8L, and other Mopar push-rod engines. I don't know if any non-Mopar used stamped-steel shaft mounted rockers. A co-worker recently mentioned that his 63 Cadillac engine was special, with shaft-mounted rockers.

As I recall, there should be round washers between each rocker arm to space them and avoid rubbing. Perhaps they aren't visible in the photo.