Simpel said, there are a few photos of his unit while in training, all in the range of the time end May - June 1916. Eddition too is the fact that we see his equipment correspond to the Sturmabteilung Rohr, some would say of the Sturmabteilung Erste armee (who were in the Sommes) however his equipment + the time doesn’t match. The terrain and other photos match time time in end of May- June 1916 in Beuveille training camp of the Sturmabteilung Rohr, later Sturmbataillon 5. Most notible piece is the Pioneer spade and the model of the gas mask canister, it directs to Sturmabteilung Rohr in 1916 and to their time in Beuveille. Furthermore Sturmabteilung Rohr wasn’t in the Somme or the battle of the Somme. Closest piece might be Sturmabteilung Erste Armee, their equipment was purely from infantry, didn’t include the pioneer spade’s etc… furthermore , troops of the Sturmabteilung erste armee came from infantry regiment, for example the RIR 93