Glass Tray Sterling Silver Overlay Poppy 15" Silver City Footed Wedding Buffet

This is a beautiful very large 15" round glass silver city 4 footed serving tray with sterling silver overlay and trim.  The pattern is City Flanders or Poppy.  Based on other items similar to this with the Silver City labels still attached, I suspect that this is a crystal tray with sterling silver trim and overlay.  The tray is a nice large 15" across and about 1.5" tall.  The silver portion is still in very good condition with slight/minor wear. There is a slight scuff but I cannot feel it when touched.  There are no colors on this tray; any colors are from glare or reflections from surrounding items.   No cracks or chips to the glass.  The tray weighs about 4 lbs and 6 ounces.  I have not seen one this large! What a beautiful piece to use at a wedding banquet for finger sandwiches or cakes.  Many uses and very elegant.