Do you recognize this grill item or broiler pan?

Hi! I'm new here. I really appreciate your help! I have a couple if items that have been driving me bonkers for many years. I don't want to get rid of them until I know what they are, haha!!

Does anyone know what this broiler pan is for? It looks like it might go to a specifically shaped grill or oven, but for many years I have had no luck finding info. on it. It looks like any old broiler style pan, perforated and standing on three legs. The finish is "granite" colored blue and white enamel or porcelain (like a roaster pan). It is 14" in diameter. Thank you so much!

It's cool, but I hate to use it. It's too pretty to dirty, but too big to keep in the cupboard for nonsense. :-)