This is a Mid Century Revere Ware 1 quart copper clad saucepan with lid, 3 inches deep by 5-3/4" diameter. It came with a 2-cup capacity stainless steel double boiler insert pan, but I'm not sure if the insert is original. The insert has a small, shallow line ding inside, and the saucepan also has one just above the copper/stainless line near the bottom (see third photo, bottom edge at about the 7 o'clock position). You have to look closely to see them, and they don't affect cooking performance. The saucepan is USA made Revere Ware, marked on the bottom with the original Process Patent logo which was in use from 1946 to 1968.