chaosophia218:Caracteres Spirituum Elementarium: Ignis, Aqua, Terra et Aeris (Symbols for Elementary
chaosophia218:Caracteres Spirituum Elementarium: Ignis, Aqua, Terra et Aeris (Symbols for Elementary Spirits: Fire, Water, Earth and Air), “Compendium rarissimum totius Artis Magicae sistematisatae per celeberrimos Artis hujus Magistros”, 1775. -- source link