This is very reminiscent of Stangl Pottery. The bottom is marked in raised letters under the white glaze "U.S.A. Royal Haeger". There is also a number to identify this model but I cannot make it out.
Vintage Royal Haeger Pottery Geranium Leaf Green Matte Glaze MCM RG-22 USA
Royal Haeger by Royal Hickman Long Pink Blue Mauve Agate Fluted Bowl Planter
Royal Haeger Calla Lilly Bookend Royal Hickman R475 Brown Green Art Pottery
Shell Vase Etched On Bottom: Royal Haeger By Royal Hickman Made In USA 299
Royal Haeger Light Blue Urn with Swirls Vintage 7" Ceramic Vase Unmarked
MCM ORANGE ROYAL HAEGER ASHTRAY SP 12 USA 13.5” Speckle Glaze Boomerang CLEAN!!!
