Lots of unknown marks - Hanau?

[Jag]

Some of these seem vaguely familiar, but I don't know why. I didn't see any of the marks on the Hanau page, so maybe it isn't Hanau? But if so what is it?

[Francais]

These are not Hanau marks, it needs to be moved to French silver.
The first mark is a caduceus (upside down). a counter mark or discharge mark.
The second mark is Bordeaux 1783-4 date letter G.
The next mark is maker's mark for Charles Louis SEGAY b. 1735 master 1762
The last mark is no doubt a K which was the charge mark.
It would be nice if you cleaned out the marks with a soft brush or a softened wood toothpick
and a little silver polish. Then retake the photos, try to get diffuse lighting.
Finally if you give the name written out, I might be able to identify the owner.
I am curious what is the blob above the first mark?
Maurice

[Jag]

Thank you for your reply! I'll post better pictures shortly. The blob is where a previous owner scraped into the metal, apparently to determine whether it was plated or not. Luckily they didn't damage any of the hallmarks. More info soon.