Collectible 1967 Kennedy 1/2 Dollar.,1 1/8 in. Diameter . 35 Troy oz. USA Minted coin. All Post -1964 Kennedy 1/2 dollar coins contain 80% silver and 20% copper with an inner core of 20.9% silver and 79.1% copper (net composition: 40% silver and 60% copper). Profile of JFK on front, reads Liberty In God We Trust. Opposite side depicts American Eagle and reads United Stated of America Half Dollar.800th Anniversary of Mariazell Basilica. 1957 Austrian 1157-1957 .800 SILVER Coin , .41 Troy oz. A 25 schilling minted Austrian Silver Coin. Depicts Mariazell Basilica on front with name of designer of coin. Backside depicts 25 schilling and reads REPUBLIK ?STERREICH. 1.5 in. Diameter. Historic 25 Schilling silver coin of Austria commemorating Mariazell, a historic city in Styria state, which turned 800 years old in 1957. Edwin Grienauer ( 1893-1964) designed the commemorative 800th anniversary issue coin. He was an Austrian sculptor and medalistUnited States Minted 1967 Kennedy 1/2 Dollar Coin, Collectible 1/2 Dollar Kennedy Coin, JFK Kennedy 1/2 Dollar American Currency, MINTED Austrian .800 SILVER 800th anniversary Mariazell Basilica coin, Austrian Mariazell 1157-1957 Silver Coin, Edwin Grienauer designed Austrian SILVER Coin, Austrian 25 schilling collectible currency, collectible coins, Historical Austrian 25 Schilling coin, 3nj