Over 500 rare Michael Jordan cards were discovered in Tucson, Arizona, in a shoe box after a sister inherited her brother's collection. The brother aimed to collect every Michael Jordan refractor card Ultra Rare Allen Iverson Card Hits Auction Block, Gets Six Figure Bid Gary Vaynerchuck Wants you to Invest in Memorabilia Here's What you Need to Know About Rare Cards and Grading by Anthony Andranik Moumjian Medium A rare collection of over 500 Michael Jordan sports cards were recently discovered in shoeboxes inside a home in Tucson, Arizona. The cards were originally owned by a collector who set out