1978-1982 100 Historic Stamps of America in Binder. Limited edition collection of U.S. stamps and commemorative covers with a reference data sheet included aside each of the commemorative covers. Stamps and their associated envelope and reference card are slipped into the plastic sleeve pockets of the original heavy duty leatherette binder. Each stamp includes its own envelope with the cancellation date by the post office on or near the date of the original commemorated event.