The bad news is that of the four cards missing, 1 is the Dan Marino rookie card, and 1 is the Dan Marino In Action. The good news is that the other two missing cards are commons, and this set is loaded with HOF rookies. A large number of cards, including the key cards, have wear consistent with nm, but due to centering , print defects, or wax stains on back have technical grades 1 or more steps below that, Key cards include:
#63 John Elway HOF rookie card EX/MT
#129 Dwight Stephenson HOF rookie card EX/MT
#111 Howie Long HOF rookie card EX/MT
#143 Andre Tippett HOF rookie card EX
#222 Jim Covert HOF rookie card NM
#280 Eric Dickerson HOF rookie card VG/EX
#286 Jackie Slater HOF rookie card EX/MT
#300 Morten Andersen HOF rookie card NM
#303 Rickey Jackson HOF rookie card EX/MT
#358 Joe Montana HOF EX/MT
#380 Darrell Green NM
#381 Russ Grimm EX/MT