Glass Slides

Thanhouser used glass slides (also known as stereopticons) like the ones below to promote its films starting in 1911. They were shown between screenings

to entice audiences to come see the company's future releases, very much like today's "coming attractions" trailers screened today in theatres and on television.

For a detailed review of these Thanhouser glass slides, see my post on Robert Bryne's blog "Coming Thursday!" that I wrote in 2011. Click on an image below to link to the film topic that it is promoting.