World War I is generally cited as lasting from 1914 through 1918. While the United States didn't become heavily involved until the last two years of the conflict, the war's impact was felt here, too. Unlike World War II, when virtually no mainstream sets were produced, there were some key baseball card sets issued during the time frame of "The Great War." Here's a look … [Read more...] about 6 Great Baseball Card Sets From World War I Era