The expert you requested is no longer a verifed user here.
I would be happy to help with your porcelain wares, however I only assess one item or matched set per question.
Your violin question should be placed under the Musical Instruments Appraisal category to ensure you get an expert in that area. There is one photo of the terminus of the violin attached here that I can see, if you added more than one photo, the others are not showing.
In the meantime, for the porcelain piece, please provide the size and a view of the object as well as a clear, in-focus close-up of the mark if any. You can send the photos at your convenience. There is not an extra charge to provide more pictures here.
I am wondering if you are still interested in having your item assessed?
Please let me know and do you have requested images available?
I look forward to reading back from you.