Description from Military.com:
Located just west of Petaluma, Training Center Petaluma is the Coast Guard’s largest West Coast Training Center.
Our graduates are the latest cooks, medics, storekeepers, yeoman, information technicians, electronics technicians, and operations specialists. We are also home to the Coast Guard Leadership Development Center’s Chief Petty Officer Academy.
Each coin measures 1 3/4 inch (44mm) in diameter.