I'm not up on farming/ground working implements but suspect it to be related to field work.
Could be part of a sickle bar but not resembling anything I've seen on them.
Scale of size is hard to tell from your picture.
Could be a subsoil ripper tooth/blade or cultivator tine maybe, depending on size.
It's about a foot in length I would say. So if this is a plow blade are they collectible? Is it worth anything. I don't care about value too much but I am just curries.
Thanks to everyone who helped out. I would love more information like age and value. However that is definitely enough for it to be solved, thanks everyone!