Sarreguemines Terre de fer dessert plates Royat model

2 old dessert plates terre de fer stamped sarreguemines u&g royat model period late 19th century in beautiful antique condition, no major incidents, they have kept their shine. These plates are over 120 years old and show some signs of age, they are yellowed on the edge look at the photos, they are also part of the description 21 cm in diameter.