Georg II Coin ?

I was hoping someone from UK would have an opinion. Here's what I think. It is a George II halfpenny (rather than a farthing, but eventually it all depends on the size), and pretty mangled it is. My book suggests that one collects G II's copper coins in at least VF condition (which is quite obtainable), so I doubt many people would consider paying much (if anything) for this coin.

I would concur with Coinage123. I think it is a farthing too in very low grade indeed. It would be nothing more than a filler. I think 3GBP is rather optimistic on the value front. CP.

The thickness of the coin could be deceptive. I think it looks overly thick because it's so mangled. The reason why I still think that it is rather a half is the elements of the design. First, the branch in Britannia's hand is more bushed out which is a variety for the halfpenny. Second, the tip of the branch in a farthing tends to point at "A" in the legend while in a half it rather points at "N". You can't really see the whole legend, but I see enough of I and T to presume the latter. And third, there doesn't seem to be enough room for a relatively bigger exergue for a date below Britannia which occurs on a farthing.
But I could be wrong. As I stated above it really depends on the size (which in this case is going to be off anyway because of the damage).

It has been hammered around the entirity of the edge. This is often found on copper coins of this period. No obvious reason for it other than boredom!