Letter on reverse addressed to a Herrn in Münchhausen with postage cancelled in St. Avold on 2.11.13.
Jäger zu Pferde or mounted Jäger were the most recent addition to the cavalry, having been formed in 1897 for intelligence and reconnaissance duties. In 1905, the Jäger zu Pferde regiments were turned into regular cavalry regiments.
The men above are wearing Dragoner (Dragoon) helmets, owing to a supply problem of their distinctive JzP helmets. JzP regiments 8 to 13 would not receive the JzP helmet until 1915.