Ohio Caverns Key Chain. Fob is a Locket connected the the Key Ring by a Metal Rope Attachment. Gold Colored Metal. The Front of the Locket has a Center with a Mother of Pearl Look. On the Center is a Gold Colored Shield Illustration of the Old Entrance to the Caverns. Back of the Locket is Blank. Locket is About 1 1/8 Inches in Diameter and About 1/8 of an Inch Thick. Ohio Caverns is a Show Cave located 30 miles from Dayton, Ohio near the Town West Liberty. Lots of Smudging and Scratches. Unknown Vintage, Unknown Origin and Unknown Materials. All Parts in Good Working Order. Used and Only Slightly Abused.