The 26th evening of the season.

Richard Wagner, Die Walküre (for the 1st time this season).

Pertinent newspaper articles from the following sources are in the archives:

Neue Freie Presse, August 27, 1897 (Wien).
Neue Freie Presse, August 27, 1897 (Wien).
Deutsche Zeitung, August 27, 1897 (Wien).