[7] In 2013, the United States Postal Service (USPS) auctioned on eBay a proof of the Antarctic Treaty issue that contained the handwritten approval of Postmaster General Blount.

[10][11][12] It features a map of Antarctica in white, set on a field of blue, which was adapted from the logo design used on documents of the treaty's consultative meetings.

[13] Earlier, in 1965, the Special Committee on Antarctic Research of the International Council of Scientific Unions had called for stamps commemorating the decennial of the treaty to prominently feature the map of Antarctica.

[14] Due to competing territorial claims in Antarctica, the simplicity of a map-centered design was considered a matter of political importance.

[15] Howard Koslow returned to design the fifty-cent, airmail, stamp which depicted USCGC Glacier near Ross Island.