How special!! I just pick up all this pottery for pennies at the Goodwill Store! I wanted to know who the lady was who made and signed the pieces and she is Rachel Rottersman 1909-1993, Teacher, who ran a Children's relief welfare center for over 1000 orphans and refugees in Germany after WWII. Several accolades and honors in her lifetime including her works were the subject of a 1948 MGM Movie "The Search" starring Montgomery Clift and Aline MacMahon played Mrs. Rottersman.  The pieces are dated from 1965 to 1973.  I came home to research her and found she sadly passed away. I wish I knew if she had made these overseas ... or maybe as a hobby back here at home. Amazing find!