Although the glyphs in H are damaged parallel to Pb9-32 -- 33 there probably is no glyph missing. However, to mark the slight possibility of a missing glyph the glyph labels continue with 101, 102 ... etc.

The total number of glyphs on side b in H was presumably 648 (= 2π * 100 + 20) and that precludes the possibility of an additional glyph.