Here we have a true treasure in unopened pack collecting. Pair of 1971 Topps basketball wax packs, graded NM+ 7.5 and Mint 9 by GAI represent the toughest packs out of all 4 major sports. In 1971, the Topps company produced the least amount of unopened material in their history, making these gems two of the rarest in Topps history.