1943-S 5C (Regular Strike) Posted on August 17, 2014August 17, 2014 by OcalaFlorida 1943-S 5C (Regular Strike) Diameter: 21.20 millimeters Designer: Felix Schlag Weight: 5.00 grams Edge: Plain Mintage: 104,060,000 Metal Content: 56% Copper, 35% Silver, 9% Manganese Posted in Jefferson Nickel (1938 to Date), Jefferson War Nickels - Type 2, Silver Alloy (1942-1945).