This Cabinet card is a terrific image of three fencers photographed by Friedr. Haack of Jena, Germany. Note the color which was added after the photograph was taken. Jena is a university city in central Germany. At the end of the 18th century Jena became a center for precision machinery, optics, and glass making. The subjects of this fencing Cabinet card probably were university students, as academic fencing was very popular during the time period this photograph was taken. I hope some knowledegable fencing aficionados can provide further information about the details concerning this image.