The Vintage Postcard Swallows Nest in Wisconsin Dells is a single original postcard featuring a standard size of 5.5 x 3.5 inches made of cardstock. This collectible item showcases the unique charm of the swallows nest in the Wisconsin Dells area, making it a desirable piece for postcard collectors. The postcard is from the United States and is in unposted condition, making it a valuable addition to any vintage postcard collection.