Hi and welcome to the forum,
To me it looks like a plate in the baroque style made in Germany perhaps in Hanau around 1900.
I am not sure that this is a correct interpretation of the maker's mark, but I read the letters as ALBA and below the letter H(anau), but I can´t find a suitable manufacturer.
As a matter of fact it resembles a lot the jewellry maker Levinger & Bissinger's of Pforzheim maker's mark.
Best regards/ JAKJO