The Clinton, Illinois plant produced more Revere Ware than the others simply because it was open for the longest. It was opened in 1950, and continued production of some type of Revere Cookware until it was closed in 1999. I am putting together a time-line of Revere Copper & Brass history, mostly about the Revere Ware cookware line, but other aspects of the company’s productions are relevant as well. I hope to post it soon.
After Revere decided to thin down the copper and stainless in their cookware in 1968, simultaneously changing the logo to appear like this one pictured, production continued only in the Clinton plant for 6 years.
Rome was the original home of Revere Copper & Brass as early as the 1880’s, and later opened the Riverside, CA plant specifically for cookware in 1949, and Clinton, Il a year later. Revere closed the Riverside facility down forever in 1962, after 13 years in operation. Rome ceased cookware production in 1968, except for maybe tea kettles, and did not reopen until 1974, so if you see this logo with a “Rome” stamp, it was made in 1974 or later. The picture in this post of the “Rome” logo was from a pan manufactured in 1979. This stamp without a date with the “Clinton” stamp could have been produced from 1968 to 1977.
Any cookware with “Riverside” printed on the bottom will be “Process Patent”, and is actually fairly rare. You won’t see this logo with Riverside on it. In 1978, Revere started including the year of production in their logo.