رِسَاَلة فِي تَعْليمِ الْعَمَلِ بعِلْمِ الْحَرْفِ

Licence: Public Domain Mark

Credit: رِسَاَلة فِي تَعْليمِ الْعَمَلِ بعِلْمِ الْحَرْفِ . Source: Wellcome Collection.