As oel points out, you have an interesting collection of marks on this covered bowl.
Starting from photo 4, right to left:
-As oel states, a silver standard mark of a walking rooster in an octagonal reserve for 800 standard silver used 1798-1809. We know it is from the provinces because 2 is at the front of the bird. Next, the guarantee mark of a man in a circular reserve. I cannot make out the number of the province which should be found on either side of the head. The number would tell you where the object was made. Finally, a small mark which is too dirty and blurred for me to see.
Photo 3 shows stamped initials over an old repair line. This is not a maker’s mark, but perhaps the initials of the repairman. You do not show a maker’s mark in your photos.
Photo 2 shows some interesting marks. On the left an eagle with an open beak, facing left. If oel hadn’t said anything, I would have said that this is a 1809 recount mark (poinçon de recense) used on medium sized objects from the provinces. We would have to spend some time over a few beers to come to agreement whether this is a French mark or a Belgian mark. Next, a French boar’s head mark used after 1838. This mark might have been stamped when the object was repaired.
Photo 1 shows a Belgian import mark, identified by oel.
In summary, your bowl was made of 800 standard silver in the French provinces between 1798-1809. It was imported into Belgium between 1815-1832, or maybe earlier if oel is correct about the eagle head mark. The bowl was repaired at some point in its history.
Hope this helps.