This is a large antique A. Lanternier platter.
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 pictures and you will find the dimensions, and you can get a good look at the piece.
If you have any questions, please e-mail.