Quick lunch hunt

[Nathan W]

Went to new permission field near my job. Found some older items. Was a 1890s home there but tore down in the 1950s.

 

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[Digger RJ]

Went to new permission field near my job. Found some older items. Was a 1890s home there but tore down in the 1950s.

Nice!!! Congrats!!!

 

[Gare]

Unique finds any idea what they are for ?

 

[Blackfoot58]

The star, appears to be a cover that sits over a large nut as a retainer. If so , the bolt would have a hole for a cotter pin just above this retainer.
It would work similarly to a castellated nut. Generally for machinery. That’s my guess.👍🏼