This entry covers the condensed and extra-condensed widths of Folio, which have been offered in five variants: Folio schmalfett (Bold Condensed, 1956), Folio schmalmager (Light Condensed, 1962), Folio schmalhalbfett (Medium Condensed, 1962), Folio eng (Bold Extra Condensed, 1964), and Folio-Kursiv schmalfett (Italic Bold Condensed, 1965). [Reichardt 2011]
URW’s version of Folio appears to be the only digital incarnation of the family with all the Condensed and Extra Condensed styles. Forgotten Shapes has announced another revival as Folio FSL.