I'm just full of questions lately ;)
You are tiring us out Clark; keep the good questions coming. I'm glad you are asking.
Miami skillets are sometimes seen (later versions) with the Favorite Piqua Ware logo in addition to just Miami in the diamond. These are both a lower cost line of skillets, sizes 7, 8, and 9 only, that are slightly smaller and shallower than the usual skillets. Same as Griswold made in their Victor line, Wagner's National skillets, and Wapak's Oneta line. The quality is not any less than these companie's regular line and most of the pans are not worth a lot more than the regular pans. Exceptions: Griswold's Nos. 5 and 6 Victor skillets which are hard to find and worth big $. Some of these pans were nickel plated including some Miami skillets. And those skillets do get their name from Miami County where Favorite Stove & Range is located in Piqua, Ohio.
Steve