Here some more pictures from my collection with the addition of information by contributers on Facebook and forums. Good enough to share but not enough for their own blog… Thanks again for your help!
First theme – Helmets and or gasmask being worn:
After the 11th offensive (in Hungarian) and the date indeed corresponds with a moment shortly after the 11th Isonzo battle.
With thanks to Ryan Nelson: Not much can be seen in the background, however due to the helmet, gasmask, and, the trench, it can possibly be inferred that this soldier could be with either Landwehr Infanterie Regiment Nr. 4 ‘Klagenfurt’ or Nr. 27 ‘Laibach’ which were called Gebirgsschützen regiments 1 and 2 in March 1917. The two Landwehr regiments had been incorporated into the Landesschützen command and were also given the Edelweiẞ insignia. These two regiments were along the Piave front in 1917/1918 and not in the mountainous areas like the 3 Kaiserschützen regiments. The man also appears to be wearing a sharpshooters lanyard typical for the Landesschützen which is in line with the above assessment.
Kézdivásárhely (Rumania) April 23rd 1918. On the location by Sandor Magyarosi: the Romanian offensive against Transylvania in 1916 took the town, but as a part of the German-Austro-Hungarian counterattack, the Austro-Hungarians took it back the same year (more precisely, the k.u.k. 82nd regiment). They pushed forward to the border an stopped (a bit into Romania), so the lines of the two parties were built in the mountains. The major fighting took place in fact in 1917, at the Ojtoz/Oituz Pass. Basically Kézdivásárhely was the first town behind the front (there were some villages that were closer, but this was the closest urban settlement). If the picture was taken in April 1918, these guys probably were just withdrawn from the front (the armistice with Romania was already in place) and they were waiting to be transferred to the Italian front.
Some other (than infantry) branches:
Two cavalry men (Hussars most likely)
Pioneer that looks like an attendant of the Pionierkadettenschule because of his smaller “Kadettensäbel” and the Salonhosen (Maxi Wlezcek)
Ulans, eastern front early war. Very non standard coats….
Reading a paper…
Reading a Hungarian newspaper. Interesting to see a German “ersatz” Pickelhaube above the man.
Officers (major and 2nd lt) reading a Hungarian newspaper (Az Est – The Evening) and some trench art made of shells in use.
Some medals being worn by officers (bravery medals you can find in the blog dedicated to that theme).
Reserve 1st Lieutenant Paul (Pál) Zsurilla Paul of Infantry Regiment 26. Note the 2nd award bar on the Military Merit Cross! (thanks to Ivan Iver Chudý)
Award ceremony of a German Irond Cross 2nd class to a Cavalry officer