This 2012 Happy Birthday Silver Round contains One Ounce of .999 Fine Silver and is 39 mm. in diameter. It can also be engraved on the reverse with that special person's name, at your local jeweler. Click on picture to enlarge view. W2618$45.99 Phone orders are gladly accepted. R and S Distributors P.O. Box 6341 Evansville, IN. 47719 Ph. 1-812-483-2901 Ph. 1-812-423-5551 Email-rscoin@aol.com