Archae-Numeric and origin of XYZ

[click pic to enlarge]

re. the numbers, seems to me that the last common numerical language was 1-12
_ (1 horiz line)
= (2 lines)
3 (3 horiz lines, cursive)
[=] square (4 lines, 2 vert 2 horiz)
_ above a square (5 lines)
= above a square (6 lines, 2 vert, 4 horiz)
3 above a square (7 lines)
square above a square (8 lines)
square above _ above a square (9 lines) (became % sign?)
square above = above a square (10 lines)
square above 3 above a square (11 lines)
square above a square above a square (12 lines)

12 might have been quickly drawn as a cube triface (a Y at center of angled cube)?
(A simple paint program or cad could show all this better.)

originally zero was a point or dot, not a circle, so 4 and 8 were curved.

Used probably 8,000 years ago, with local variations.
I'd wondered how 10, 11, 12 appeared before decimal notation.

Primitive numerical symbols used in early merchant/market trade, with local variations?

Numer = Sumer (symbol) name, used in Samar, Meroe, Meru, Samarkand, Somali, Sumatra... mer = merchant marine or port

> re. origin of XYZ in alphabet:
>
> XXXXXX if these letters all touched as a grid, they'd
> XXXXXX produce a bi axial weave of 90 deg. = squares
> XXXXXX add duplicate overlay & tilt = octagons
>
> YYYYYY if these letters all touched as a grid, they'd
> YYYYYY produce tri axial chicken wire weave = hexagons
> YYYYYY add duplicate overlay & tilt = rhombi (below)
>
> ZZZZZZ if these letters all touched as a grid, they'd
> ZZZZZZ produce bi axial 120,60 deg. weave = rhombi
> ZZZZZZ add duplicate overlay & tilt = 60 deg. triangles

add a duplicate overlay to get tetrahedral grid
add a duplicate overlay to get cube grid (?)

Maybe buy some cheap chickenwire, cut into 6 layers and overlay them, noting the cells (X-Y-Z-delta-tetra-cube?)
I'm sure someone has done this, but I don't recall seeing it anywhere, could be done with nets flat or on a sphere (notching where necessary.).
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Polynesian contact with California?
here