Only one season in existence and this is a game used hat. One of the rarest game used items you will find. You won’t find another one available.
The Seattle Pilots
Seattle Pilots MLB Fan Cap, Hats for sale
1956–1980 – Page 23 – SABR's Baseball Cards Research Committee
The Seattle Pilots
1969 Seattle Pilots Mariners baseball, Seattle sports, Major league baseball teams
All-time Brewers top Draft picks
SDSU Pitcher Ryan Bourassa Signs MLB Contract
The Seattle Pilots
Is your favorite MLB team cursed? - ESPN