Well, not my find, my 40+yr-old son spotted it one day, looked unusual, so picked it up.
Its a miniature stove lid for a little wood stove!
No embossing or initials or dates that I can see.... sorry!
Cool find, though...!
View attachment 1566166
View attachment 1566167
Found this Saturday, thought it was cool so I brought it home. View attachment 1566582