Randy Clark of the Dexter City Auction Gallery in Dexter City, Ohio, holds the Peoples Vase to be auctioned on Nov. 30. The rare piece of carnival glass will bring in from $110,000 to $140,000, he ...

Very similar to logos, maker marks were placed on the bottom of some of the vintage pieces made by commonly known carnival glass manufacturers, such as Dugan, Fenton, Imperial, and Northwood.

Richard Gehrke, of Father Times Antiques, Duluth, said, "Prices in our shop range from $20-$40 for Indiana carnival glass to higher prices for the Fenton pieces.