Einstein & E=mc2 Enamel Pin Set collection_novelty You may notice some irregularities

You may notice some irregularities in the material

All pieces are neatly contained in a see-through window-front blue box

Pluto's largest satellite (or moon) was discovered by United States Naval Observatory astronomer James Christy

and scathing newspaper editorials

Earth Below: a guide to astronomy in the national parks

Einstein & E=mc2 Enamel Pin Set collection_novelty You may notice some irregularitiesIn theory, Albert Einstein and E = mc2 show you have potential you know, relatively. These enamel pins are packaged in sets of two with rubber pin backs. Wear your heart on your sleeve and big ideas on your collar, your hat, your backpack for a little inspiration everywhere you go.