Designed by Jakob Erbar and cut in 1923 by Ludwig & Mayer. Shown in specimens as extrabold companion to Feder-Grotesk (1909). [Bertheau] The extrabold italic is known as Feder-Kursiv (1925). The metal original has narrow high-contrast alternates with monolinear rounds or diagonals for ‘BDKPRabdgpq’, and additional alternates with diagonally cut off legs for ‘K’ and ‘R’. Only latter are included in the — largely identical — digital versions by Elsner+Flake and Scangraphic. The ‘tz’ ligature is missing from all digitizations. Castle Type’s Koloss is slightly rounded, has a modernized eszett, and covers Greek and Cyrillic. It adds a Condensed and a set of decorated caps, Koloss Wave.