Re:
I'm not sure either. I'll dig out what I have and send a pic, hopefully they will be what you need. I had a set of new marathons a while ago which didn't come with the adapter, I remember the valve being a small fiddly thing under an adjuster, but that's about all. It's why I have an adapter, but I sold the forks before the adapter arrived.
I think they may also be the same as the rock shox ones needed for some forks/rear shocks.