Jesse, of what I have, I do not have one of these. Thats a nice piece and you did an excellent job of cleaning it. Did you season it too? :-/
For some stupid reason, I was thinking that it was a number 15 all along, I mean, we talked about a lid for it, how the modified lid fit, and all that, and then, come to find out, its a number 13, well, there ain't no lid for this, if you didn't know it then, you know it now, AIN'T NO LID for the 13, ain't no factory made lid, ain't no modified lid, ain't no nuthin lid. ;D