A penny for your thoughts? If it's 1943 copper penny, it could be worth as mush as fifty thousand dollar. In 1943,most pennies were made out of steel since copper was needed for world war 2, so , the 1943 coppy penny is ultra-rare. Another rarity is the 1955 double die penny. These pennies were mistakenly double stamped ,so they have overlapping date and letters. If it's uncirculated ,ti'd easily fetch 25,000 at an auction . Now that's a preety penny