Century 751 family (Bitstream library) contains 8 fonts.
Century 751 Std Roman
Century 751 Std Italic
Century 751 Std Semi Bold
Century 751 Std Semi Bold Italic
Century 751 Std Bold
Century 751 Std Bold Italic
Century 751 Std Black
Century 751 Std Black Italic
Font collection on Fonts-online.com Alphabet font list