SALTON HOTRAY electric food keeper tray

Here's another one still in its box -- a larger unit that could hold a rectangular casserole dish and/or a few smaller ones. It has a textured glass top showing a pattern of silvery lines underneath, I think those represent the actual heating element paths inside it. Walnut wood handles on either end. It is a HOTRAY Model# H-120, made by Salton Mfg. Co. Inc. of New York N.Y. Tucked into its box with it is a gift receipt envelope from Marshall Field & Company and a reprint (?) article from Ladies Home Journal (c) 1958 titled "Dinner Can Wait an Electric Tray's The Secret".