The fifth gallow?

[ololololo]

I made an overview of such cases in this thread You are not allowed to view links. Register or Login to view.

The ones you picked out are all scribe 1. Like oshfkd says, they are all different. Whether they are meant as the same kind of thing or variations of common gallows is unclear, though I prefer the latter.

A very interesting thread!
But in my opinion, all the "wonderful" gallows can be divided into capital ones (and not take them into account, because, as for me, they are of no interest) and decorated ones, which are also of no interest and easy to identify. 
Firstly, the glyph shape of the fifth gallows occurs several times (I did not mention all the cases in the post). It also seems to be stable and similar to each other and it doesn't look like a "decorated" f. Using the examples in your thread, you can see that often an additional leg comes from the tail. The writing of this glyph, apparently, comes from the left leg, and the right one comes out after the upper loop.

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This unique symbol appears in the text several times, but it seems to me that given this number of appearances, it can't be called "unique".

I'd call them unique. To me all three examples you have shown look substantially different from one another. The third one topologically is the same as normal f with an additional bend. Top two look like f with double legs, the top one with an extra loop.

The examples I haven't taken into account look the same as the third one (which is on the pedestal), the first two are not particularly successful.