Help with old iron relic.

[Trad]

I love finding old iron, especially if it has visible words or dates. Any ideas on what this could be. Found at about 5".

Thanks for any help!

 

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Treasure of Victoria Peak - Grab it through Amazon!

[ARC]

Size ? take a picture with a coin for a reference... pref a U.S. coin.
Photo of flipside ?

 

[Trad]

Thanks AARC. I should have included these in the first post.

 

[artemis moon]

Could it be a Geological Survey Marker?

 

[MountainDewed]

I tried to search by image and this came up, so I'm not much help:

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcT-eu986fQH36TTh-5fUVI-lMRpjFtQKoZDQwFQtWjFEsX6sOWS