Humanist Slabserif 712 family (Bitstream library) contains 4 fonts.
Humanist Slabserif 712 Std Roman
Humanist Slabserif 712 Std Italic
Humanist Slabserif 712 Std Bold
Humanist Slabserif 712 Std Black
Font collection on Fonts-online.com Alphabet font list
