As far as grocery racks go...the blue wrappers are leftover 1981 wrappers. Topps used those until they were gone, then shifted over to the yellow wrappers which were the actual 1982 wrappers. They were distributed two different ways: in the red grocery trays, packaged 24 to a tray, three trays to a case; they were also distributed 192 racks to a display case. The display case unfolded to stand up, and then the 192 racks were on display for purchase inside that larger display. Hope that helps.
kevin
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