GENERAL TIPS FOR IDENTIFICATION Does the skillet have any markings on it at all?
The Internet has opened up a myriad of ways to identify cast iron.
Cast iron cookware is considered some of the best and most amazing stuff that anyone could ever cook with.
My grandma gave me a cast iron dutch oven a while back and I never had the chance to use it because it was rusty, too big to use, and I haven't been camping in a long time.
Trademarks varied from as simple as the name of the city of manufacture in plain, block letters, such as the coveted "Erie" pieces produced by Griswold in the late 1800s, to the more elaborately-styled scripts, logos, symbols, and descriptive markings used by Wagner, Griswold, Martin, Favorite, and others up through the 1950s. Favorite Piqua Ware Block FPW Block "The Best To Cook In" FPW Stylized Font FPW Stylized Font "Smiley" Favorite Stoves & Ranges Sunrise Logo Miami Diamond Logo FPW Smiley/Miami Diamond, Dual Logo Puritan (Sears Roebuck) by Favorite 3¼" Diameter, Italicized Lettering aka "Slant" Logo (1906-1912¹, 1909-29², 1939-44³) 3¼" Diameter, Block Lettering aka Large Block Logo (1920-1940)⁴ 1⅞" Diameter, Block Lettering aka Small Block Logo (1939-1957)⁵ 2¼"-2½" Diameter, Block Lettering aka Medium Block Logo or Late Large TM (1955-1957)⁶ Griswold Slant "No Erie" (1909-1920) Victor (1900-1910) Victor/Griswold Mfg. aka Fully-Marked Victor (1920-1935) Good Health (1920s-1930s) Best Made S. It is also seen in slightly varying diameters on pieces of the same pattern number, leading some to differentiate smaller instances as being a "medium logo".These items are promoted in this way in order to entice the buyer and make him think this is a genuine antique cast iron pan from the year 1891 – after all, it says "1891" right there on the pan!In fact, this particular line of cast iron was manufactured from 1991 through 1999: The Wagner cast iron company was purchased by the Randall Corporation in 1952.Much cast iron cookware is not marked with a brand.It takes some research to know what particular markings mean.