Pink depression glass cake plate, vintage Anchor Hocking glass. This has a low center foot with bubble pattern, fluted plate 12 1/4" in diameter. (I don't know the 'real' name for this pattern, Replacements dot com calls is AHC37.)
It's in good, gently used condition - a few light scratches or utensil marks from use, no chips or cracks. Pretty shape in the ever popular pink!