Polar Explorer. Souvenir portion of the insulation of the wall of The Advanced Meteorological Base in Antarctica, signed "R.E. Byrd" on a preprinted ALS facsimile 1p., 4 to., Boston Mass, May 10, 1936.

"On this anniversary of our return from the South Polar regions I want to express to you my deep and enduring appreciation for the assistance you rendered our second Antarctic Expedition which helped to make it possible for us to serve more than twenty branches of science and map and take possession of thousands of square miles of new territory for the United States. Attached to this sheep is an autographed piece of the insulation form the wall of the advanced meteorological Base the southern most habitation occupied by man. Signed by Byrd as Commander B.A. E. II"

Page is foxed and wrinkled, but it does not influence its historical and collectable significance. (#SI)