Is the porcelain piece separate from the metal base ?? If so can you possibly take a pic of the bottom ?? Usually the foot of any pottery item is left unglazed and looking at that can help with age !! No matter how clean a house is the unglazed portion will collect dust and other airborne things and will age over the years !!
First thought when I looked at this piece was a Staffordshire pottery or on a lesser note,,French !! Now France is not far from England and many items from English potteries can turn up in France and vice verse !! That said the English and French potteries would not use a mark that was illegible as this one !! They would want people to know who made it !!
This looks more like a powder jar than a jewelry casket !! From a dresser set !!
The porcelain and the brass are separate pieces. It could be from a dresser set, but it’s quite large. I finally measured it. The feet are 7″ apart, the length of the porcelain is 8″, 7″ from the knob on the lid to the bottom of the porcelain and it’s 6″ in depth. Because I live in earthquake country, the whole thing is held down with museum wax. It is definitely hand-painted. It is probably has a weight of 1.5 lbs. It definitely does not look cheaply made. I will try to take better pictures of it this weekend once I scrape all the museum wax off of it.