This is a Wallace brand silver plated rectangular buffet server warming tray from the Baroque collection, model #268. It is a collectible metalware piece ideal for serving and keeping food warm during meals or events. The piece is ornately designed with a gorgeous floral motif. The main lid opens to reveal two lidded slots for food. The tray can be taken off the warmer. The tray is supported by four feet. 
 
The tray shows some signs of wear and age.   
 
Dimensions: 17 3/4" X 13" X 12 1/2"