The art on this 1978 Vintage Seattle Mariners T-Shirt has been custom produced by Vintage Brand. The Seattle Mariners are an American professional baseball team based in Seattle, Washington. Enfranchised in 1977, the Mariners are a member of Major League Baseball’s American League. Before being awarded a team in Major League Baseball, Seattle had been a staple of the Pacific Coast League dating back to the late 19th century. The first attempt to land a major league team failed when a bid by William Daley to move the Cleveland Indians to Seattle in 1965 fell apart. In late 1967, Daley led a consortium to win a franchise in the 1969 expansion. That team became the Seattle Pilots. The Seattle Pilots, amidst a bevy of financial problems, were sold and relocated to Milwaukee for the 1970 season and became the Milwaukee Brewers. The first original Mariners logo consisted of the word “Mariners,” with the letter “M” replaced by a marine blue trident.