1988, Feb. 4 and later, four First Day Covers with all four sets, Scott 2616-18, 2619-21, 2622-24, and 2625-27 (2 images)

1988, Feb. 4 and later, four First Day Covers with all four sets, Scott 2616-18, 2619-21, 2622-24, and 2625-27 (2 images)