What are these?

[CZconnoisseur]

Made of lead and a little smaller in diameter than a penny - found these at a homesite dating back to at least the 1950s

 

[Ant]

If I found those I would think that they are the male halves from snap buttons used on jackets or tarps.

 

[HuntinDog]

They are the lead seals for roofing nails

 

[Walknstik]

I once hunted and old farm stead where I was finding those under a large oak and they were driving me crazy Scattered among them were Indians, V's, Buff's, early wheat's plus relics so I could not pass them up. Ha! Similar to the curse of the pull-tab.

 

[flinthunter]

HuntinDog is correct. They are the lead seals for roofing nails.