• MADE BY: The Posters were produced and released by Topps, Inc.
  • MANUFACTURED IN: The Posters from Topps were manufactured in Ashland, OH
  • COPYRIGHT DATE: The copyright date on the Posters reads 1986
  • PRODUCT DIMENSIONS: Each Poster measures 12" x 17" (w x h)
  • COMPLETE SET: A complete set consists of 18 different posters

In May, 1986...capitalizing on the success of the trading cards...Topps put out a series of Posters. The posters measured 12" by 17", and featured original artwork by John Pound and Tom Bunk
The posters were sold one per package, and featured the number of the poster in a small circle on the back. The checklist for the series of 18 posters was printed on the back of the packaging

Package (front)
Package (back)

The packs were distributed in a counter-display box that was extremely similar to the boxes used for the wax packs (stickers). Each box contained 36 sealed posters

Box (front)
Box (back)

The posters were folded in fourths in order to fit into the wrapper. Below is a gallery of all 18 posters (the lines where the posters were folded are visible in the images)

As with most GPK merchandise released by the Topps company back in the 80s (or today for that matter), there was not a lot of advertising. Below are two examples of GPK Poster promotional material from my collection.
First is the Sale Sheet, which is extremely difficult to locate; and second is a scan from the Sport Americana Price Guide (that coincidentally shows an image of the sale sheet)

Sale Sheet
Price Guide pg. 152