The fifth gallow?

[Jorge_Stolfi]

What do you think?

In general, I think that the "puffs" p and f, like the more ornate page-initial gallows, are just fancy versions of other glyphs or diglyphs.  Then differences between puffs would not be significant, as long as they stand for the same "plain" glyph.

But if the details are significant, then I would say that only two of those four examples (the first two) can be the same glyph; and only if, on the first one, we ignore the loop at the end of the horizontal arm, and we assume that the both legs are bent (instead of one being straight and the other crossing it).

All the best, --stolfi