1920s vintage Buffalo china, plain chunky white ironstone butter plate or small tray

Dated 1924 Buffalo china plain white ironstone, a small oval plate for butter or something like that. It's 6 3/4" long over the rim.

This is in good used condition - it's restaurant china, and does have some utensil marks / light scratching from use. No chips or cracks. Looks very nice for 100 years old!