Leo

Hello! I have a question about the following photos: this is a photo from my photo archive,

one of the graduates is my grandmother's older brother Michael Hrycaj, here is his personal photo (possibly from 1917):

And this is a photo from an Internet auction (I attach a link https://www.ebay.co.uk/i/114216171397?chn=ps)

- graduates are already different, and the year is probably also different, but the place is clearly the same. Question: what kind of "school" it can be and where. On the back of my photo, the sender also wrote that "he had already graduated from the officer's school" and is in Hohenstadt (I guess it was probably Zábřeh) and indicated the date of writing the letter - December 5, 1916. However, the question about the location of the photos is open.

And, I would also be grateful for the identification of rank, type of troops, awards (if possible, of course).

Thank You a lot

Here are some more pictures.

№3 - signed by the other side - Dolinkiewich, obviously grandfather colleague:

№4 - grandfather colleagues:

№5 - another colleages:

This is my grandfather Johan Trochim (1890-1978). He fought in the WWI, K.u K. 4 Horse artillery battalion (Reitende Artilleriedivision №4, RAD4), battery №3

Photo №1: 1914, Lviv (Lemberg) (J.Trochim on the left)

 
Photo №2: 18 july 1918, Barkarota, Italian front

Please describe his medals and his rank.