Large/Old Blade ID?

[bergie]

Please take a look and let me know any ideas on this. Was found at 1800s era homestead. Thanks. Flecks on the surface peeling off appear copper. About 1/4 inch thickest at base and becoming thinner as it goes to the tip.

 

[Treasure $ Trekkies]

looks like a broken tip from a sickle, would be vary common for the 1800.

 

[Treasure $ Trekkies]

The other object is a dollar bill, just kidding