Hi,
Your clock has a typical French movement, known as a "Mouvement de Paris" as these movements were generally produced in Paris and the surrounding areas. Some bear a maker's stamp, others do not. If they do not, it is very difficult to identify them. The letters "VL" could mean any number of things, they could potentially be the initials of the employee of the company that put it together. While it would be nice to be able to attribute it to a specific maker, the fact that the movement is unsigned does not detract from the clock. It's still a nice French marble clock, circa 1880-1900, and the platform escapement is a less common feature.
Regards.