I have spent a lot of time trying to find something like this online and failed so I am leaning towards this not being a coin. There is some lettering that can be seen in the right light. Pence possibly and a date that can look like 1901 and 1861 depending on the light don't let the picture fool you. I haven't tried cleaning it as the sheer shape should help with identifying it. Chinese cash coins always seem to have their symbols on their, but this does not and have the typical US date stamp. The reeded or milled edge says to me it's later 1800's possibly? The coins looks clad to me with some gold color shining through the patina. This was found in an area with what seems to be a lot of large cut nails and some old bail wire possibly. Not one modern wire nail. Some nails I chased down 3ft... This was west coast 1 hour from LA. My daughter likes the iron finds so dad does a lot of digging... Any help is appreciated. Thanks