Typewriters originally made no distinction in shape between O and 0; some models did not even have a separate key for the digit 0.
Dǎɣ santo, maəhinetan ən akatab winan itigu tibidawen ən əmik gar O əd 0; iyad almaɣnatan winan ila wala buton ebdan fal amaɗin 0.