This is Premierlieutnant [1st Lieutenant] Ernst Keibel during his 2-year command to the "Militär-Reit-Institut" [Cavalry School] in Hannover.
Two years later until 1898 he returned to this Institute as Adjutant respectively Instructor. His last command was horse preliminary inspection commissioner in Stendal, even during wartime according to the "Ehrenrangliste 1914-1918".
Attached his military career as been published in the Offizierstammliste des Ulanen-Regiments 3 from 1908. He later was nobilitized "von Keibel" as the Hanover address book from 1886 only gives “Keibel” as the name.