Gentlemen,
I had to search again for the photo of Bauer von Bauerntal as I had not 'saved' it. Picture is on the Austrian State Archives site. As you can see the signature doesn't match.
I have also added a photo of FML Rudolf Obauer von Bannerfeld , but once again I don't think so.
A search on-line has provided little information on Tit. GM Anton Bauer and it appears he was not recalled during the war. That leaves GM Ludwig Bauer von Markaszeg (no picture). But why would a Hungarian speaking Officer leave a dedication in German?
There was also an Oberst Alois v. Bauer (no photo) who was pensioned in 1915, and is not listed in Antonio Schmidt- Brentano's work on Austro-Hungarian Generals. So I think he can be ruled out.
Your assistance to date is very much appreciated.
Regards,
Ian.