CORNING WARE GLASS ROUND REPLACEMENT LID #33 7 5/8" 

Measures 7 5/8" from edge to edge ~ Rim inside measures approx. 7"

Round Casserole should be slightly smaller than 7"

Information on lid reads: Corning, NY USA & #33 on opposite side

Very Nice Lid with no Breaks or Chips - Large Knob  - Clear Glass