Dug this yesterday at an old home site occupied late 19th century till maybe the 1930s. Shaped exactly like a spoon but completely flat, and made that way, not just flattened. Sticks to a magnet so wasn't a fancy version of whatever it is...
It looks like a spoon because......it is a spoon....flattened..by reason or accident
A man could starve to death trying to eat with this thing...
If it is *perfectly* flat and you find more like it in the general vicinity, I'd guess that you found a flatware manufactory. But a regular, standard spoon can get smooshed without much noticeable damage. Are there maker's marks?