Brian Kent sends along two covers issued for the 1958 Area 2-D Conclave. The 1958 Area 2-D Conclave was actually held outside of NYS at Stratton Mountain Scout Reservation in Vermont.
Here is a photo of 2 different envelope designs from the 1958 Area 2D Conclave. I picked one up recently and then noticed it was different from one I already had.

I’ll update the original post with the information.
[auction-affiliate tool=”lister”]
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“If we can prevent the government from wasting the labors of the people, under the pretense of taking care of them, they must become happy.” –Thomas Jefferson, letter to Thomas Cooper, 1802