Day Ⅱ: The Firmament

FACTUM · EST · VESPERE · ET · MANE DIES Ⅱ (And the evening and the morning were the second day) (Genesis 1:8).

W1 B6. The quatrefoil D11 shows the waters above and below the Firmament being divided and D12 shows waves on the sea, i.e., the water below the Firmament.