This vintage casserole is the original model. It measures 11" x 8.5" x 3" high.

On the bottom, in raised white letters, which the camera flash does not make visible in photos, it is labeled:

   CORNING

 French White

F-2-B  2.8 LITER

The underneath side of the plastic lid, in raised white letters, it is marked:

 CORNING

    F-2-PC

MADE IN USA

COVER FOR REFRIGERATOR, FREEZER AND MICROWAVE USE

         DO NOT USE COVER IN CONVENTIONAL OVEN

                   DISHWASHER TOP RACK ONLY

This cover is nice and airtight.  It has only been used in a refrigerator.