Spent my afternoon working some 'old' cast iron

Did a little more work after the last pic was taken. It's oiled up and on the grill cooking right now. It's not perfect, but it's a hell of a sight better than before. The first picture was after I ran a steel brush over it for about 30 minutes. It was in BAD shape. From what I gather, it's from the '50's. No stamp, but it's labeled a #10, 11 3/4 inches. It was my wife's grandparents. When we cleaned out the house, it was sitting in the sink with water in it, for God only knows how long.