This vintage set of golf balls from Spalding is a must-have for any golf enthusiast. With its rare Pin Flite model and made in the USA, these balls are a collector's item. The set comes with 6 new and sealed balls, making it a great addition to any vintage golf equipment collection. The brand, model, and country of manufacture are all important aspects to note for those interested in vintage golf equipment. The bundle description also indicates that this set comes with 6 balls, making it a custom bundle. This rare find is a great addition to any golf collection and is sure to impress.