1970 GM inner grille (the last one ?)

[CaptRMW]

I saw a recent thread discussing when GM quit making 1970 inner grilles and started selling 1969 inner grilles for both '69 and '70 models. I bought a 1970 grille in "about 1990" (the memory is the second thing to go ) and expected to see a shipping date or something to give us a clue but I only see a label printing date of 7/87. According to the label there are no surpluses on this part so you GM parts experts jump in here and decipher this..Thanks, Roger