You will notice the finish on your skillet is a little grainy, it improve with seasoning and cooking. The older Lodge was more finely cast and not as "grainy". Again if you are at antique stores or flea markets or yard sales and see a skillet labeled like yours on the bottom with SK10 and USA, it is about 90% a Lodge and is going to be more smooth and finely cast. After many years of cooking and good care, your skillet will be jet black and as smooth as a baby's bottom. Bacon is your friend when you have new cast iron. Cook bacon over and over. Cook it, then clean it out, rub some light oil then reheat, then cool down. Do that over and over.