Siyah mashq (Persian:) lit. "black practice", is calligraphic practice sheet includes a number of diagonal words and letters used in combinations facing upwards and downwards on the folio.
Siyah mashq (Persian:) lit. "black practice", are calligraphic practice sheets often covered completely with writing. They may include a number of diagonal words and letters used in combinations facing upwards and downwards on the folio.