In order for me to properly assess what you have I will need to know the size and see images of the front and back (do not remove from frame). There is a close-up of the signature already attached here.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
My apologies for the delay, I am traveling on business. At your convenience, please send a clear, in-focus, close-up image of the signature on this painting.
I have not found a match to this signature for you.
I will opt-out and your question will open again to all the experts. If someone knows the answer they will post a response to you here. You do not need to re-list your question and this does not cost you extra.
I do hope you find the information that you seek.