Fenton Hobnail Vase Blue, Opalescent Handmade, mold blown glass No mark on base Discontinued. Produced: 1939 - 1955 Approximate Measurements Height 3.5" Rim Width (edge to edge) 2-2.25" Pre-owned. Excellent condition The inner rim is not perfectly circular; you can feel the "pleating" of the glass along the inner rim created as it was handblown into the mold