Stunning Newly Minted F-4 Phantom II Society Challenge Coin Celebrating The 25th Anniversary of Continuous Phantom Conferences (PhanCon) from 1988 through 2013. Each State is Recognized with the number of events hosted. Weight is 1.25 ounces (35.44 grams) and is 1.75 inches (44.45 millimeters) x 1/8 inches (3.175 millimeters) with the outside edge in polished gold color.