The mould numbering appears to be incomplete on those. In fact, they look just like those from Type III Alps clones. Those have a simplified contact design, though. That said, I'm doubting these are genuine Alps.
Yeah, but these have actual complicated contact plates, which is strange! I don't think I've seen clones with that, but I might not have been to thorough in reading up on the different clones.
I love my orange alps. My personal favorite all time (prefer them over green and yellow alps), I love tactile switches! My next goal is to find brown alps board (which is almost impossible I heard. )
Orange Alps are pretty nice. Out of the most common switches, my favorites are SKCM Blue, SKCL Green, and SKCM Orange. Brown tactile Alps are not hard to find (remember there is brown linear as well, which are a lot harder to find), but only because of the seeming abundance of IBM 5140 luggable computers that ALWAYS have them. Otherwise, they would be almost as rare as tactile green and linear brown, I'd say.