Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (1)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (2)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (3)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (27)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (4)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (5)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (6)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (7)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (8)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (9)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (10)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (11)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (12)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (13)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (14)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (15)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (16)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (17)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (18)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (19)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (20)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (21)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (22)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (23)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (24)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (25)
Smithsonian National Postal Museum:
William H. Gross Stamp Gallery Groundbreaking (26)