Maker: Favorite Stove & Range Co. Marking: “FAVORITE PIQUA WARE” + diamond-shaped MIAMI logo. Size: #7 (about 9.25″ diameter) x 1.75″ T. Miami skillets are generally believed to be a mid-grade line, but they were still well cast and machined – nearly identical to the quality to the premium Piqua Ware skillets. So your piece dates to the 1920s or early 1930s, right before Favorite’s closure in 1935. The Miami-marked skillets are not as common as the standard Piqua Ware, so collectors like to grab them when they pop up. The diamond-shaped Miami logo gives it some extra display value – it’s visually striking compared to the plain Piqua markings. Cooking Surface: Smooth, glassy, and even, no pitting – perfect for daily cooking. Bottom: Crisp logos, continuous heat ring, no cracks. Flatness: Sits dead flat on a marble counter top. Nice light vintage weight. Finely Cast: See pics – sidewalls are thinner than a us nickel!