Fiberglass flapless helmet is finished in classic Yankees blue with hand painted "NY" team logo on the front. American Baseball Cap label on the inside notes size (7 1/2) and has their Media, PA location listed with zip code. This helps to date the helmet to the c.1963-65 timeframe as they would add the zip code starting around 1963. A piece of period trainers tape affixed inside has handwritten "7 Mantle" notation done in similar style to other Yankee helmets of this era (and likely written by longtime equipment Manager Pete Sheehy). Leather interior padding is intact with the foam core pad inside crown of helmet being replaced from a different 1960s Yankees player helmet. The helmet exhibits very strong use including a rare and desirable period team repair using what appears to linen tape patching having then been overpainted to match helmet color. Paint touch-ups by the team to maintain visual appearance are commonly seen on most game used helmets of the period with this example showing minimal evidence of such. This helmet along with the Mantle helmet within this auction originated from the personal collection of the General Manager for the Binghamton Triplets. The Triplets were the Minor League affiliate of the Yankees and frequently received game used items to be "recycled" by the Minor League club. The front office official recognized the significance of the Mantle and Maris helmets and as such retained them for his personal collection. Mickey Mantle is universally regarded as one of the greatest players in the history of the Yankees franchise and for that matter in the game of baseball. His statistics speak for themselves but when coupled with playing in New York during the Golden Age of baseball and his flare for life in general Mantle rose to a different level of recognition within American popular culture. Rare and desirable relic as relates to the most significant player on one of the most prominent teams of All-Time. Additional color publication image of Mantle wearing a similar helmet is included which has been signed by Mantle in blue sharpie. Includes LOA from John Taube, Mantle signed photo wearing similar helmet, and letter of provenance regarding the history of the helmet: VG-EX