Britannia Halfpenny Coin ID: William III or William and Mary?

[coinman123]

Update: Solved as a 1696 William III Halfpenny after more soaking in olive oil

I found this coin metal detecting which is either William III Halfpenny or a William and Mary Halfpenny, what do you think? Based on the reverse with Britannia's arm raised it tells me that it's from before 1700.



William and Mary Halfpenny


William III Halfpenny


Here it's photos before cleaning by soaking in olive oil for only a day, I already cleaned it with a Q-tip in these photos :
Coinman123,

 

[coinsareawesome]

I think it is a William and Mary halfpenny, because I can see the outline of two figures. If it is a William and Mary halfpenny, it's worth anywhere from $30 to $45.

 

[FreeBirdTim]

I'm going with a William & Mary halfpenny as well. When I made the image smaller, I could see a "hump" at roughly 1 o'clock on the coin. That hump seems to match up with the one on the William & Mary coin. Just my opinion, though.

 

[coinman123]

I'm going with a William & Mary halfpenny as well. When I made the image smaller, I could see a "hump" at roughly 1 o'clock on the coin. That hump seems to match up with the one on the William & Mary coin. Just my opinion, though.

View attachment 1080928

I noticed that too, I looks like the outline of a second head. If so, than it would most likely be William and Mary.