It's 1968. The Summer Olympics are in Mexico, at an elevation never braved again. George Foreman wins the gold for heavyweight boxing. Coins were printed! Some of those lucky coins were turned into rings. This is one of those rings.
Ring Size: 10.5
Unless otherwise indicated, rings should be resizable by your local jeweler for a very modest cost (usually $20 or less, unless you're dramatically enlarging a gold ring). You can find your ring size with this online tool or get a free ring sizer here.