nolan ryan Values - MAVIN
1975 Topps All Pro Safeties Ken Houston/Dick Anderson #222 PSA 8 - The Card Deal
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2007 Baseball Media Guide by Jon Cole - Issuu
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1975 Topps # 354 Record Breaker Ken Houston Houston Oilers (Football Card) NM/MT Oilers Prairie View : Collectibles & Fine Art
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1981 Topps Baseball, Baseball Cards Wiki
1975 Topps #354 - Ken Houston Record Breaker 7 - NM
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