Wear this History of Diving Museum polo and proudly proclaim your place in diving history!   The Miller Dunn Style 2 Divinhood “A diving apparatus so simple anyone can use it” revolutionized shallow water diving with its introduction in 1927.  This remarkable helmet is featured as the logo for the History of Diving Museum, dedicated to telling the amazing stories behind such advances in underwater exploration.  Short sleeves, three button placket, soft rib knit edged sleeves, 50/50 poly-cotton, unisex styling. Specify Size: S, M, L, XL, XXL, XXXL.