800 years old pattern from Mesopotamia
Graphics / relief / linoleum / pattern: A reconstruction of a 788 years old pattern.
Read on for info and process photos
Previous states / process
The pattern was/is an ornament on a found object, unfortunately I do not recall which kind. I do not know the original size but my best guess is that this is at least 2-3 times the size of the original. While the object was found in Mosul it did not bear any stamp of origin, so the place of origin (as well as the inventor) is unknown.
First, I simply copied the drawing onto linoleum. The drawing is a pretty close copy of the original, only the size is bigger.
Above, grid lines were added, after first erasing most of the copied pattern. You will see from the image that the copy does not follow the grid very well (click to enlarge). The grid is a line for each 7mm in four directions.
So, here is the reason some lines in the original were not parallel: See the double lines? These are one line that follows the grid, and one line that follows the pattern (ie. connects the lines of the pattern irrespective of gridlines).
The master of the original solved the problem by slanting most lines so that the overall impression was one of relative harmony. And (s)he was very talented. An untrained eye would probably see the original as highly regular, which it isn't.
The photo above reveals some information about the structure of the pattern, ie that it is in fact two identical meandering one-line patterns intertwined.