When hiking through the woods near my house I noticed a barbed wire fence that was growing through some trees. 

I quickly realized that someone had fenced this area off for a reason some time in the past.   After some investigation I came upon an old rock foundation in the woods.  Later I returned with a friends metal detector and dug my first relics. 

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I later learned that these items are part of a horse collar and were used to pull wagons.