Аннотация:The article examines a stamp on a tile of Bosporus, which was found in 1955 at Phanago-ria. The stamp with a legend «ΙΔΙΩΤΙΚΗ» comes from the pavement № 359 at the exavation«North Town». Comcomitant material from the exavation complex allows to define this stampnot earlier than IH century B. C. The same date is confirmed by the paleographic particularityof the stamp. The comparison of this stamp with other tiles of Bosporus indicates its proximity to thestamps with legend ΒΑΣΙΛΙΚΗ (IosPE III № 1370-1637) and allows us to conclude that theywere manufactured by the same stamp-graver. Literature analysis leads us to conclusion that the adjectives βασιλική and 'ιδιωτική written on the stamps define different types of Royal property at the Bosporus. The tiles wereproduced for the government order and in case of ΙΔΙΩΤΙΚΗ legend (due to small number ofstamps) was made obviously for a definite building.