1988 Scholastic NFL Helmet Poster

When i was in elementary school in the 80s we would always get a scholastic news letter. In there you could choose from books and other items to purchase. Zas I remember, you just filled it out returned it to your teacher and the got the loot from your parents to pay for whatever you picked out. At some point around 1988 I ordered this poster with all 28 teams. This will always be my NFL, a classic era of NFL football. I finally got around to buying a frame for it and and hung it on my wall. You can occasionally pick up this one and other eras of this poster on Ebay. Where else?