The image is a photograph of a poster on a blue wall with white text. The poster is titled "Solidaridad" which translates to "Solidarity" in English. The text is written in Spanish and appears to be a list of events taking place in Madrid, Spain.

The poster is divided into three sections. The first section is titled:

- Conferencia-Coloquio Memoría Historica Obrera
- Historia Historia Obrera:
- Forquiero Desarmaron a las Milicias Obraras
- Anarquistas-Estalistas
- Sociedad Históricas Estática
- Selecciones Histórias de la Historia de la Universidad de Madrid

At the bottom of the poster, there is a note in Spanish that reads "Acude el 17 de Diciembre a las 11,45 h. al local de la Solidaridad y unidad de los Trabajadores
- Plaza Matute, 10, 2º Dcha, Madrid
- Años de la Constitución História Historia Obrada

There is also a small illustration of a group of people in the top left corner of the page. The background of the image is white, and the text is black.