This is more Photography practice. Anyone who wants to practice their variety attribution skill or grading can give it a shot.
I think S-31 since the double lock is obvious and the 1 does not touch the curl(which it does in S-30).
The tailed reverse H is distinctive. This makes the S-30 (11-H) far more likely than a new pairing of 12-H. Were the edges of the 1 more distinctive, I might be inclined to make the case for the 12-H. I like sharing that which I find fascinating.
