The collection contains black and white photographs taken during the Mexican Revolution in the early 20th century. Photographs in the collection cover various locations, battles, soldiers, and important figures such as Álvaro Obregón, Francisco Madero, Pancho Villa and Pascual Orozco.

This collection consists of around 1500 photographs and photographic postcards featuring the people, places, and events significant to the Mexican Revolution (1910-1920) from the studio of Luis Ramirez Pimentel, including many images from the Chihuahua Campaigns (circa 1910-1913).

The collection consists mainly of photographs of Francisco “Pancho” Villa, a Mexican Revolutionary general and prominent figure during the Mexican Revolution in the early 20th century. Photographs in the collection include portraits of Villa, Villa with his troops and other military figures, Villa's murder in 1923, and photographs of Villa’s family.