Vintage Deviled Egg Serving Platter.  Might also be used as a relish tray. Plate with Hen Nest Chicken, and the underside looks like nesting, hay embossed in the green glass.  Could possibly be Jadeite, not certain.  Size is 10 x 12.5 and has a space for 12 eggs.  This is a rare item, none like it on this site and is part of an estate sale and has been unused and stored in a box for many years.