1974, Thailand, Rama IX. Proof Silver 50 Baht “Rhinoceros” CoinMintage: 9,885 pcs. Reference: KM-102a.Mint Year: 1974 (BE 2517)Material: Silver (.925)Diameter: 38.61mmWeight: 28.28gmBhumibol Adulyadej (Thai: ภูมิพลอดุลยเดช; RTGS: Phumiphon Adunyadet; born 5 December 1927) is the King of Thailand. He is also known as Rama IX, as he is the ninth monarch of the Chakri Dynasty. Having r ...