Druware
Druware, also known as DRU Holland cookware and Royal Dru, was a line of porcelain-enamel-coated cast-iron cookware made by the De Koninklijke Diepenbrock & Reigers of Ulft (DRU) company in Achterhoek, Netherlands. == Imports to the United States == The pots and pans were popular in the United States during the middle of the 20th century, after Robert Evans began importing the cookware from The Netherlands, with gross annual sales of $1.5 million in 1956, and nearly $2 million in 1957.