Various Hammered for ID/confirmation

[Paddy 1,723]

I have come across a batch of coins that I had previously only loosely identified/confirmed. Can anyone help and/or pass comment?

One per post - First is this that I have loosely labelled Iceni Stater:

[Paddy 1,723]

Second is this that I believe is Durotriges Stater:

[Paddy 1,723]

Third is this one, which came with a ticket suggesting Kentish Unit:

[Paddy 1,723]

Fourth is this one, which I believe is Edward the Black Prince Denier:

[Paddy 1,723]

and fifth and finally this, which I can see is Henry VII Groat, probably S2258, but is it authentic?

[Coinery 1,153]

On 7/30/2023 at 11:57 AM, Paddy said:

and fifth and finally this, which I can see is Henry VII Groat, probably S2258, but is it authentic?

Here are some known counterfeits if that helps? Yours is clearly a different die from the ones shown, if that kick-starts the post for you?

[Paddy 1,723]

Thanks for that @Coinery - mine is certainly a different die and mintmark. All those seem pretty much the same, not matter how much the forger has tried to make them look different.