This is a divided mayonnaise dish by two famous makers, and it measures 6 1/2 x 3 1/2".   

The glass portion is by Cambridge in their Chantilly pattern, and it has no chips, cracks or fleabites. 

The base is sterling silver by Sheffield in their Gadroon Rope pattern. There is a dent in the sterling silver base, yet it still sits level.

Please see the photos as they are very much a part of the description. Antique and vintage items have flaws, as is already reflected in the price. 

I lightly washed and buffed this dish before taking the photos. 

Thank you.