Upvote:28
I believe this uniform is from the Austrio-Hungarian empire, WWI era.
Two six-pointed stars would indicate a Korporal, and the exact unit insignia can be seen by scrolling down in the pages shown (commercial site selling the book) for the book Uniforms & Equipment of the Austro-Hungarian Army in WW1.
The insignia represents a Trench Mortar unit, seen from a viewable version of the above book at archive.org