Beat up but legible. It's been in my family since the Battle of the Piave. The back and the front are the same. I don' t know why.
The original 1000 Kronen note printed in 1902 showed the same picture on both sides, but one side was in German--Tausend Kronen--and the other side was in Hungarian--Ezer Korona. Your note has the stamp in red, meaning that the note was printed after WWI and the end of the Austrian Empire. It had German on both sides showing that it was printed for use in Austria. This particular note was printed in 1919, and is referenced as note #145 in Katalog der österreichischen Banknoten ab 1759.