Screen Messages used in Movie Cinemas, c.1912.

The cinemas from the 1910s also used these informational messages to explain to the audience how to behave during the screening of a silent film.
A nice set of vintage pictures created in 1912 by John D. Scott and Edward Van Altena, and published today by The Library of Congress.
messages-cinemas-1910-15
via Etiquette ā€“ Vintage screen messages used in the movie theaters in 1910 | Ufunk.net.