Keywords: Karion Istomin's alphabet YU.jpg Karion Istomin's alphabet book - cyrillic letter Ю yu И Л Бусева-Давыдова Культу а и искусство в эпоху пе емен - Инд ик 2008 ISBN 978-5-85759-439-1 1694 en Karion Istomin 1640s - after 1718 PD-old-100 Karion Istomin's alphabet book Russian letter Yu Early Cyrillic Yu letter Cyrillic Yu as an initial |