FIRST DAY ISSUE STAMP ENVELOPES - LOT OF 50

Lot of 50 commemorative first day issue stamp envelopes dating from the late 1940s to the early 1960s with themes including:

• 10th anniversary of the North Atlantic Treaty (1959).
• Honoring the National Guard (1953).
• 50 years of Arctic exploration (1959).
• Honoring 4-H Clubs of America (1952).
• Commemorating admission of Alaska to statehood (1959).