Help ID American Pottery Mark - Olive over Brown Glaze
Hi. I recently received for Christmas two beautiful terracotta mugs. They're approximately 3 3/4" tall x 2 3/4 " opening,looks like olive green over brown glaze and has swirls outside and inside to bottom of cup. Also has a "D" handle. The mark is incised and difficult to read. It may say Rockilla, Raddelle, or Roc_ _ lla? Also has initials or place incised below that. Blu_ NY or NH. My son thought it was Roseville, but I know familiar pottery marks and it isn't one I've seen before. Could you help me?