RARE!!! 2 VINTAGE FLOOR & CEILING Antique Cast Iron or stamped steel Square Heating Grates plus duct box 16 x 14 x 8.Excellent 2 sided grates with springs and duct box in between. One of the grates was in the ceiling of the dining roomand the other the floor of the second story bedroom. Hard to find everything intact. This was from a house in North central MN that was scheduled to be tore down. We were able to harvest some gems including this fabulous piece of hist...ory.We will provide insurance up to the purchase price if you do shipping.If you are in MN, SD ND IA WI NE IL We can provide cheap shipping through Spee Dee of about $12.00. The difference will be refunded through paypal.Merry Christmas to you all from snowy Minnesota.