WA) The Pilots were originally not scheduled to begin play until 1971 - however the date was moved 2 years ahead in order to keep the number of teams in the league even.
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Seattle Pilots Jersey - Cream - 5XL - Royal Retros
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1969 Seattle Pilots, No. 21 Tommy Harper – Oldtime Baseball Game
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vintage collectible SEATTLE PILOTS BASEBALL memorabilia for sale
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Ball Four: Twentieth Anniversary Edition: Bouton, Jim
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Seattle Pilots Vintage Sports Photos for sale
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Cards That Never Were: 1970 Topps Tommy Harper All Star
Newspaper press publicity photo. YES, we do combine multiple wins! black and white.
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1969 TOMMY HARPER SEATTLE PILOTS original 8x10 baseball Publicity Photo
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Ball Four: The Final Pitch: Bouton, Jim, Bouton, Jim
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Tommy Harper - Wikipedia
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2013 Oldtime Baseball Game Program
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Cardboard appreciation: 1981 Topps 1980 NL Championships
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Tommy Harper, Baseball Wiki
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A Trip Down Trader Lane – SABR's Baseball Cards Research Committee
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The Flight of the Seattle Pilots – Society for American Baseball