Ga3-5 Ga3-9 Ga3-16 Ga3-19 Ga3-21 Ga3-24
Ga4-4 Ga4-6 Ga4-8 Ga4-10 Ga4-13 Ga4-15
Ga4-19 Ga4-22 Ga4-27 Ga5-3 Ga5-9 Ga5-16
Ga5-21 Ga5-29 Ga6-4 Ga6-8 Ga6-11 Ga6-16
Ga6-18 Ga6-20 Ga6-16 Ga6-18 Ga6-20 Ga7-4
Several other glyphs (than Ga4-19) look rather similar (as regards the form of henua). No 'proof' can therefore be found here.
Ga7-10 Gb8-2 13 blackmarked glyphs have aberrant kiore mouths. 32 - 1 (Gb8-2) - 13 = 18, in other words 32 = 18 (sun) + 14 (moon).