Thank you for the request here.
In order for me to properly assess what you have I will need to know the size and see images of the front, back (do not remove from frame) and a clear, in-focus close-up of the signature and/or small print.
If you had already attached images to your initial posting, they are not showing for me here on my end.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
I will let you know if I find any pertinent biographical information on this person.
I will opt-out here and open your question again to all the experts at no additional charge. If someone knows the answer, they will respond to you here. You do not need to re-post your question.
I do hope you find the information that you seek.
Start with just the one's that are marked, and then group together the one's with the same maker mark.
Then research first only the maker marks you can read easily.
My apologies, that was posting was meant for someone researching a 1000 piece porcelain shoe collection :/ I wondered why my post wasn't on there. Sorry ~Nora