Sample from page f3r, lines 1-6 (parag P1), left margin. In this sample there are glyphs with at least five distinguishable weights, (0) through (4), with increasing ink darkness. Weight (0) presumably is original writing. Weights (1) and (2) are very similar, but can be distinguished when used on adjacent glyphs, as on lines 2 and 3, or two strokes of the same glyph, as on the @r of line 3. Ditto for levels (3) and (4). The concentric circles at bottom are drawn with colors typical of these five levels.