This is an antique A. Lanternier Limoges dinner plate.
This piece dates back to 1900, but Frederic Lanternier started the company in the 1870’s. In 1890 the son, A. Lanternier took over the business, thus the A in the maker’s mark.
This piece is in excellent, used condition. Take a look at the photos and you will find the dimensions, and can get a good look at it. I have two of these available for sale, each individually.
If you have any questions, please e-mail.