It is possible that it is "i" with a tail (in fact I lean toward this interpretation for reasons I've described in a draft blog that I haven't had time to post yet).
My reason for thinking that it might be a minim with a tail is a little different from yours, but at least we agree on the possible transliteration of the shape.
My reason for thinking that it might be a minim with a tail is a little different from yours, but at least we agree on the possible transliteration of the shape.