Frolova BARFrolova, N. The Coinage of the Kingdom of Bosporus AD 69 - 238. BAR 56. (Oxford, 1979). Frolova, N. The Coinage of the Kingdom of Bosporus AD 242–341/342. BAR 166. (Oxford, 1983). | Frolova BAR (Frolova Coinage)Frolova, N. The Coinage of the Kingdom of Bosporus AD 69 - 238. BAR 56. (Oxford, 1979). Frolova, N. The Coinage of the Kingdom of Bosporus AD 242–341/342. BAR 166. (Oxford, 1983). |