TT Firs Neue and TT Hoves Pro are part of the identity of Solingen’s Zentrum für verfolgte Künste, or Center for Persecuted Arts in English:

The Center for Persecuted Arts is a museum of discovery, dedicated exclusively to artists whose works and opportunities for development were blocked, prevented, and partially destroyed by the dictatorships of the last century and by totalitarian regimes up to the present day. It is an interdisciplinary museum, and its collection of visual art and literature tells of lost and neglected works of art, stories, and fates.

The logo pairs TT Firs Neue with Guau.