Die Welträtsel (1899; in English: The Riddle of the Universe, 1901) is a non-fiction book by biologist and philosopher Ernst Haeckel (1834–1919). Best known for his Kunstformen der Natur (“Art Forms of Nature”), Haeckel promoted and popularised Charles Darwin’s theory of evolution in Germany.

The typeface used on the cover of this “newly revised pocket edition” from 1909 is König-Antiqua, designed by Heinz König and first cast by the Klingspor foundry in 1905. Note the use of the ſ (long s) in roman type. The KTA monogram (for Körners Taschenausgabe) is custom lettering with similarities to Eckmann. The title page shown below is set in Mainzer Fraktur (Berthold, 1901).

Invitation for a masked ball organized by the male choral society Typographia, reproduced in Typographische Mitteilungen, Vol. 10, No. 3, March 1913:

Männergesangsverein Typographia München
Masken-Ball
Samstag, den 8. Januar 1913, abends 8 Uhr
im großen Saale (2. Stock) der Zentralstelle
Während der Pause gelangt zur Aufführung «Im Hofbräuhaus»
Komisches Singspiel von Georg Köhler

Behrens-Schrift is used in three sizes, with both forms of s (“Komiſches”), ligatures for ch ck ſt, and outward-pointing guillemets (« »). Note the use of letterspacing for emphasis in Georg Köhler’s name. The illustration is signed by Otto Obermeier (1883–1958).

The second image shows the bold weight of König-Antiqua.

Typographische Vereinigung Leipzig, III. Stiftungs-Fest

König-Antiqua and Jenson Old Style* in use for announcements/invitations (or program booklets?) for the second, third, and fourth Stiftungsfest, a biennial anniversary celebration of the Typographische Vereinigung Leipzig. This typographic association was founded on 23 March 1904.

Reproduced in Typographische Mitteilungen, Vol. 11, No. 8, August 1914.

*) The font in use is likely one of the German versions of this American copy of William Morris’s Golden Type, like Antike Elzevir (D. Stempel AG) or Elzevir (Bauersche Gießerei).

Typographische Vereinigung Leipzig, Viertes Stiftungsfest 1908
Sonnabend, den 21. März 1908 im Lehrervereinshaus

II. Stiftungsfest

Typographische Vereinigung zu Leipzig

Sonnabend den 31. März 1906 im Rosentalkasino