HOURGLASS ATTACHMENT FOR RIBBONS AND MEDALS
Hourglass attachment. Also known as the Ten-Year Device. A bronze, silver and gold hourglass with Roman numeral "X" superimposed 5/16 inch (0.79cm) in height to be worn on the service and suspension ribbon of the Armed Forces Reserve Medal.
The bronze hourglass attachment denotes 10 years service, the Silver hourglass denotes 20 years service and the gold hourglass denotes 30 years service.