Barlow Mackinac Island Coasters By Artist G.L. Kiracofe-Set of 4 Features the following on the each coaster. Coasters feature Historical Mackinac Island and The Mackinac Bridge. 1. Mackinac Bridge 2. Grand Hotel 3. Round Island Light House 4. Horse Drawn Carriage Coasters have a cork backing. Appear to have never been used. In Like New Condition. Please feel free to ask any questions you may have of the item. These are very nice vintage coasters.