Pan Lid Organizer How Do You Tell The Top From The Bottom Of Roasting Pan With A Lid?

How do you tell the top from the bottom of roasting pan with a lid? - pan lid organizer

I have an old blue enamel baking pan with a lid and the bottom are the same size. The main difference is that you are dominated by a lip or RIM the other side of the machine when in the lead, or in the background, the other side of the toaster suits him. The other difference is that one of them has slightly raised 3 rectangular "rings" (or the pictures above) and the other part of the NAP has a center of very small about an inch on each side were.