Solid Sterling Silver; Heavy, Bold and beautifully detailed ring. Made in America by a veteran for Signalman. Tapered band makes this stunning ring very comfortable. The SM rating was disestablished in 2003 and their duties were absorbed by the QM rating. Before then they were responsible for communicating between ships using lights, flags or sign language. If you have ever seen them at work it’s amazing. Would make a wonderful gift or addition to any collection for yourself or someone special.