"Salus Vienna Tua" on sword

[Foxbat]

Originally Posted by Jim McDougall

My question is why would this motto referring to the Ukrainian hero of the seige of Vienna in 1683, to whom this motto is ascribed by the Polish King Jan Sobieski, be significant to a member of the Doges palace guards, and on a commemorative weapon which appears to be of 19th century with this motif apparantly acid etched. This type etching, while certainly known earlier, seems to have become popular later in the 18th century.

Those are my questions exactly. The two samples that I have seem to have come from very different periods, while maintaining great similarities.