article: Proto-Sinaitic script
links: Ayin BC Bet (letter) Sinai Ve (Cyrillic) Egyptian hieroglyphs O (Cyrillic) Em (Cyrillic) M Arabic alphabet Bronze Age Egypt K A Hebrew alphabet Phoenician alphabet Kappa Greek alphabet Ka (Cyrillic) Cyrillic alphabets Er (Cyrillic) Latin alphabet Beta (letter) A (Cyrillic) B Rho (letter) R Sinai Peninsula Be (Cyrillic) Alpha (letter) O Omicron Aleph Resh Mu (letter) Mem