merchant ensign of Austria-Hungary from 1786 until 1869 and naval and war flag of Austria-Hungary form 1880 until 1915.
http://www.viribusunitis.ca/Jalbum/Naval%20Museum%20-%20Venice/slides/P1060764.html
https://www.fotw.info/flags/ah.html
http://www.deutsche-schutzgebiete.de/webpages/Kriegsflagge_Oesterreich_Ungarn+.jpg
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