Several Whatsits, any help appreciated.

[cntrydncr1]

These finds are from my recent trip to VA. The first is a brad of some sort, about an inch long. This is the end of it.
Next are pictured all of my other whatsits, including front and back pic of the largest piece. Thanks.

 

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[Bigcypresshunter]

The top pic looks like a rivet head used in leather.

 

[kuger]

The top pic looks like a rivet head used in leather.

Thats what it is,there was one posted earlier last week as well.My buddy has found quite a few of them,in 1860-ish sites.Nice finds!

 

[traderoftreasures]

that chunk of cast looks like it came from a 1870ish stove and the rest looks like all horse related

 

[cntrydncr1]

thanks everyone! Any other thoughts on this stuff?