Art Nouveau Nude on Box with Plaque like lid - Mechanical

Help! My family is about to give up on me as I obsess who this lady is.  This 2 section box with the nude figural lady, I once loved,  is now getting on my last nerve.   She is a box with a plaque lid.  A spelter with patina.  I removed the felt on the bottom since I could not locate any makers mark at the time. She refused to easily give up her secrets. When removing the green backing Im greeted with adhesive I've been manually rolling off.  There are some raised characters. see last image.  Then magically on  one corner, on the side I located hidden a 3 letter initial. Maybe B A K or B A R. I filtered the picture and maybey these letters are completely different. It all depends what angler you view.

  I have additional pictures with some characters that were handwritten then blacked out for some reason.  I did locate a black incised mark included with images.  I would appreciate any feedback you can contribute and if further pictures are needed, I'll be happy to provide but I reached my maximum with this post.  On one end it appears a name was written and a series of symbols but

then for some reason they seem to be blacked out.  She taunts with hints then I hit brick walls.

Thank you so much for any feedback you may provide.

Good