There are some similarities between Ab8-62--67 and Aa8-21--25:

Ab8-62	Ab8-63	Ab8-64	Ab8-65	Ab8-66	Ab8-67

Aa8-21	Aa8-22	Aa8-23	Aa8-24	Aa8-25

Possibly therefore the unusual and strange glyph Ab8-67 has a parallel in Aa8-24.