Pink Plastic Bubble Pin
$32.50
8 large transparent pink bubble cabochons glued on to a pale pink plastic back. C-clasp is in good working condition. Measures 2 1/4″ across. Back is marked “PAT. 2270210″. The patent for the “artificial gem” was applied for by Nicholas Barbieri on October 21, 1941 and was patented on January 13, 1942. You can check it out at the United States Patents and Trademarks website.
