1997 S Prestige Proof Set polystyrene windows with thumb notches

polystyrene windows with thumb notches for each window removal and viewing boths sides of each coin

trademark grained leatherette cover

chemically inert polystyrene that will not harm coins

Whitman albums feature a soil resistant

The coins are rolled by an automated machine process

1997 S Prestige Proof Set polystyrene windows with thumb notchesFirst released in 1983 and continued through 1997 missing only one year(1985), Prestige Sets contain proof strikings of the regular issue coinage in addition to the commemorative dollar and half dollar from the year of release. The coins are presented in a book like case with a special laminated enclosure of a different design than the standard proof set sleeves. (Source: Wikipedia contributors, "United States Mint coin sets," Wikipedia, The Free