Apparently this was the coat of arms of the Hapsburgs adopted in 1806, after he passed, assuming he passed away before his son Arye Leib in 1801. Also at that time there was a Jewish Viennese ennobled Honig family that administered tobacco farming throughout the empire, maybe he worked for them, or was somehow related? It also maybe a Kabbalistic reference..
Israel Hönig von Hönigsberg
https://www.habsburger.net/en/chapter/double-headed-eagle-omniprese...
https://www.academia.edu/916845/_The_Eagle_Its_Twin_Heads_and_Many_...
