1930, Kingdom of Bulgaria, Boris III. Copper-Nickel 5 Leva Coin. Mint Year: 1930 Reference: KM-39. Material: Copper-Nickel Diameter: 26mm Weight: 7.92gm Boris III the Unifier, Tsar of Bulgaria (30 January 1894 – 28 August 1943), originally Boris Klemens Robert Maria Pius Ludwig Stanislaus Xaver (Boris Clement Robert Mary Pius Louis Stanislaus Xavier), son of Ferdinand I, came to t ...