The letters of the Persian alphabet are shape based. 32 letters, 18 shapes.
Part 1 of Significant Words, From "A grammar of the Persian language. To which are subjoined several dialogues; with an alphabetical list of the English and Persian terms of grammar, and an appendix on the use of Arabic words"
Achaemenid Museum of Persepolis (Takht-e-Jamshid) - Shiraz, Iran موزه هخامنشی تخت جمشید