Please take look at this skillet. It has the single notch inset heat ring and a raised sideways "W" at 6:00, as I would expect from Lodge. BUT, there's no size number at 12:00, which I haven't seen before. The skillet measures about 9-7/8" in diameter (10-7/8" with the spouts), 2" high, and is about 14-3/8" long with the handle. I'd call it a number 7. Cooking surface is smooth and it's almost dead flat, so a fine skillet in any case.
What do you think? Lodge? Seems strange not to have a size on it.