The 3rd battalion of this regiment was stationed in Fogarasch before going to the front . Which is the story of this battalion? I heard only just a bit about some involvments of the battalion in Galicia. But what year? Did they maybe fought at Przemsyl (that would explain why the guys from my image, if they were from this battalion, were not in a 1918 photography of the conscripts from Cuciulata)?
Have you asked over on The Great War forum ? Great War Forum I expect the members on there might know a bit more.
I found a bit about this unit, but very vague: 23.Honvéd-Infanterie-Division (Division captured at Przemyśl) Aug 14 - Sep 14 FML. Heinrich Daempf Sep 14 - Mar 15 FML. Arpád Tamásy von Fogaras Is this really what happened to them?