Steelite Craft, England: NEW Blue Teapot Club w/ Lid, 4 1/2", 15 oz
Steelite International Performance Craft: Vitrified China in Various Colors. Oven safe note from Steelite website: "All products are perfectly safe to use in conventional ovens. Blue Teapot Club w/ Lid, 4 1/2" Tall w/ Lid, 15 oz -- #11300367.