The shape of Latin S occurs from Greek Σ by dropping 1 out in the four strokes of that letter. The (angular) S-form made up of 3 strokes existed for a variant of your 4-stroke letter Σ now in the epigraphy of Western Greek alphabets, as well as the three https://budnakedflower17161.tribunablog.com/what-does-bud-naked-concentrate-mean-45743977