miners sumpthin'?

[Pickpan]

Located a small miners camp and now have enough square nails to build my own camp. Anyone know what this is? It has rows of serrated edges. The middle 2 rows are smashed flat. Seems like maybe an opening to an oven or ?

 

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[Icewing]

Curry Comb

 

[Pickpan]

Thank you Icewing! I found a horseshoe nearby as well. I appreciate your help.