Adjustable Rockers looks like 2 types

When I purchased my Dart and brought it home the valve cover gaskets were leaking so I removed the covers and noticed the 340 had adjustable rockers. I quickly took a few pictures of them but didn’t think anything more about them.
I was just looking at the pictures and I noticed that they look like 2 different brands of rockers! What do you think? I also have to figure out what brand they are. They look like old mopar, or maybe 273hp, any opinions?
I can barely see some numbers on the right one on the side of the arm.
Thanks

IMG_5258.png