1971 Stamps include: Historic Preservation; Decade of Space Achievement; Wildlife Conservation; Emily Dickinson, Poet; Prevent Drug Abuse; Missouri Statehood; Blood Donor; Sentry Box, Morro Castle San Juan, Puerto Rico; CARE; Antarctica Treaty and more; 1972 Stamps include: Sidney Lanier; Family Planning; Colonial Craftsmen; Cape Hatteras, NPC National Seashore; Man's Quest for Health; Old Faithful Geyser; Yellowstone; Mt. McKinley; KII Statue & Temple and more. 1974 Stamps include: Federal America Angus Cattle; Rural American; Horse Racing; Famous Work of Art; Robert Frost, Poet; VFW 75th Anniversary; Mineral Heritage and more. 1975 Stamps include: Contributors to Cause-Sybil Ludington, Salem Poor, Haym Salomon, Peter Francisco, Paul Dunbar; Bicentennial-Bunker Hill, Lexington & Concord; Benjamin West; World Peace through War; D.W. Griffith-Movie Maker; Banking & Commerce; Space and more. 1976 Stamps include: Declaration of Independence; Spirit of 76; Olympics; Commercial Aviation; Benjamin Franklin; Clara Maass, nurse; Chemistry Century; and more. Mint condition.