Oddball football collectors love this type of issue, which was released at a time when Topps still had a monopoly on releasing a nationally-distributed yearly NFL football set (Fleer did release yearly sets during this time, but were only licensed to show action photos without mentioning player names).
The five non-player cards in the set include a helmet/header card, 1985 schedule card, Eagles logo card, and cards featuring team president Norman Braman and head coach Marion Campbell.
The downside to this set is that no cards were made for two promising rookies -- quarterback Randall Cunningham and defensive end Reggie White. As the set was probably produced before the season even started, I'm guessing that no photos were available for these new players. Of the fourteen rookies who made the Eagles roster in 1985, not a single one is featured in this set.
I can tell you firsthand that this set ain't easy to find. I'm not sure how the Eagles originally distributed the cards, but there don't seem to be many of them floating around. My estimate for a current, fair market value would be in the $50 to $75 range.