Iridescent Diffraction Foil - Blue Images

Front:
NGU UN KITKAT 3 S BAN *** WINI NITAY STATIST MILAN SHUSHIA 37 1251

Back:
Iridescent Diffraction Foil: When light is exposed to this card it is reflected from the closely spaced parallel lines in the pattern, producing spectral colors. These iridescent colors are different from ordinary colors in that they change with movement of the card, light or position of the viewer. "Something Else by Peterene" for the Museum of Science, Boston, MA 1.43