Neue Photographische Gesellschaft (NPG)
1914-1915 (taken)
Krieg 1914-15.: Wirkung einer Granate in einem Baumstamm.

Stereoview
Private collection of Ralph Reiley
Two different stereograph companies used this negative.
 

1. Neue Photographische Gesellschaft (NPG), 1914-1915 (taken), Krieg 1914-15.: Wirkung einer Granate in einem Baumstamm.
   
2. Keystone View Company, 1916, A Pioneer of the Kaiser's Forests Shattered into Toothpicks by a Shell from the Russian Lines. (This view was used by Keystone as late as 1932.)

I'm indebted to Ralph Reiley for this information (5 May 2021)
 
LL/111147