May I ask what the base color is ?? It looks to have a blue tint in these pics !! I do not think that is a mfrs mark but more likely a decorators mark !! You can see the impressed number in the bottom which would be the shape number !! Can you take a close shot of the first or second pic so I can see how the decoration is done ? Also what is the finial on the lid ?? Can`t tell what it is !!
I myself can’t tell what the finial is either!
Unfortunately I can’t at this time as it is not with me. rather elsewhere with family. It is a light robin egg blue base colour.