Metal Plate Shard?

[jdsarasin8194]

I dug this today and it looks like a piece of an old style dinner plate or something because of the lip it has around the one edge.
Can anyone tell me what this is or is a piece of?

 

[Gypsy Heart]

stove lid?

 

[trikikiwi]

I do like optimists , being one myself
and as much as an ID is a big ask,
I agree with Gypsy Heart, part of a griddle.

Cheers, Mike