Our SLW is finally finished with a very heavy molt and is starting to lay again. This is one of her first eggs since the molt - note that it is not symetrical at all!!
Ha! That's kinda funny looking. Up close like that it could be mistaken for a UFO. If you aren't already, you could try giving your hen some of the oyster shell supplement. I hear that unusual shapes and colors sometimes means they need a little extra something in their diet. One of my neighbor's hens would randomly lay giant eggs. This past summer 4 out of 20 were huge! But they never hatched.