FIRST DAY ISSUE STAMP ENVELOPES - LOT OF 50

Lot of 50 commemorative first day issue stamp envelopes dating from the late 1940s to the late 1950s with themes including:

• Commemorating of Puerto Rico's first democratically elected governor (1949).
• Honoring the American flag (1959).
• 100th anniversary of the death of Edgar Allen Poe (1949).
• National Capital Sesquicentennial (1950).
• Inauguration of Dwight D. Eisenhower (1953).