Marvel Spotlight #31 (1971 1st Series) Nick Fury Agent of Shield

Assignment: The Infinity Formula!, script by Jim Starlin, art by Howard Chaykin; it is revealed that Nick Furt was seriously wounded in France during World War II; Professor Sternberg's Infinity Formula saves him; he must be inoculated by the serum every year or he will instantly get old; in Las Vegas, Nick battles Steel Harris and his minions.