22 FEB 1928 (Nr. 4/1928)
from the adverts section: the "Girlfriend" Club wrapping up carnival season with two swings and one miss. the entry requirements are what caught my eye here: "ladies and transvestites only". perhaps a very early predecessor of contemporary "flinta*" parties, or simply an invitiation to dress appropriately.
while i can't go back and check, i have to assume the "Apache ball" was less of a celebration of cultural connection between the lesbians of Berlin and the Apache people residing in the USA, and most likely an example of a pastime still popular in Germany to this day: dressing up as "Indians" and playing pretend for a few hours. this can also be observed in other German media such as "Winnetou".
the location at Alexanderplatz (also known as just "Alex") is a famous tourist spot in Berlin nowadays. quite peculiarly, looking up Landsberger Straße 39 today does not get you anywhere close to Alexanderplatz, so i have to assume the street's name or numbering system was changed since then. it is quite likely that the Palais Alexander was shelled and destroyed in World War 2.
image IDs under the cut: