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In this pattern we find no pentagons either in the underlying grid, but irregular hexagons and octagons sometimes referred to as bow-tie and bobbin shapes. These can be arranged in many different ways, with the parts of pattern they each contain corresponding nicely, as they do in the next design.
The Topkapi Scroll is thought to have been compiled in the 15th or 16th century and of Iranian origin. Essentially,…