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:

• Honoring the National Guard (1953).
• Forest conservation (1958).
• 85th anniversary of the Gettysburg Address (1948).
• 50th anniversary of the organization of the Rough Riders (1948).
• 100 years of cooperation and friendship between the U.S. and Canada (1948).