Flat Buttons, Tack, and William III(?)

[Lost Signal]

Visited a couple of fields that seem to have been occupied between the late 1700's and mid 1800's. Some friends dug older buttons and interesting odds and ends.
Found 1 coin that is pretty toasted, but the profile matches well with a William III copper. I'd appreciate any input on what the coin might be, and on the two mystery objects in the upper left-hand corner.

 

[Tpmetal]

Thanks, Crusader! That's what it looks like to me, also. Don't think I will ever find a coin older than that.

Don't say never though. I randomly found a 1680 spanish 1/2 maravedis in long island. So they are out there.

 

[awdw]

Hmmm . Wish there was a way to date the Cob.

 

[Hawks88]

Nice finds and welcome to tnet from Niagara Falls.

 

[A2coins]

Amazing HP thats a cool hunting spot gotta love it Well done

 

[Pandemonic]

Difficult to tell without the diameter or weight, but given the size of the exergue, I'm inclined to think that this is a William III 1699 farthing

 

[WG2020]

Very nice finds, especially like the wide assortment of buttons and buckles you found. To echo my compadres, welcome aboard.