Mathematica Eames Souvenir: from the 1961 opening of “Mathematica: A World of Numbers and Beyond” by the famous design team of Charles and Ray Eames this souvenir of card stock features a tessellation of the hyperbolic plane (a Poincaré Disk) with triangles on the front and on the reverse is the title of the exhibit but hidden within an anamorphic font. Amazing math art before the age of computer graphics! There are three versions of the exhibit and all can still be seen at museums in Boston, At

Wolfram Physics Project: Working Session Aug 18, 2020 [Physicalization of Empirical Metamathematics]