late 17th or 18th century French blade

[Iain]

Hi all,

First of all this sword is not in my collection but was sold at Hermann Historica in 2013 and then offered later at Del Mar but not sold. I'm curious about the blade and to see any others that correspond, perhaps in a European hilt that is more easily dated.

I am well aware of what the current hilt on it is.

All help gratefully received!