Dynaflyte "world's first perfect golf ball" 4 pack sleeve in box, new

Golfengineering ID: oth5741
Vintage: 1970's
Gender-Dexterity:
Lifecycle: New
Shaft type:

The box says everything for these balls. 4 one piece balls numbered 1,2,3 and 4. They were made of a specialized polymer called polydyne that had (supposedly) amazing wear properties. These were standard 1.68 US sized; they also made a 1.62 'Dynaflyte Export' British version. Since the 1.62 ball was disallowed worldwide for competitions in 1974, these are dated prior to then. Box fully intact but end tabs taped. Balls are new with some light rubber stamp logo/name which his unreadable - it is non engraved and appears removable.