An old English coin? [résolu]

this shows a lion but otherwise I can't see anything else on it and the other side is completely covered in green so can't see anything. It's about the size of a 5p and looks hammered, any help would be appreciated, found in England by a metal detector

https://en.numista.com/catalogue/pieces2340.html

Citation: "Sjoelund"​https://en.numista.com/catalogue/pieces2340.html

​ What - nothing like it ??!

Hi, I've clicked on the link you recommended, but it's just took me to a coin page referencing ½ Mark - Wilhelm II type 2 which makes no sense as it's nothing in relation to the coin I've put  ? But nonetheless I appreciate your advice :)

Hello there, the coin you posted is pretty badley damaged, but that little bit i can see seems to be a horse (pegasus style coin). There were minted in so many countries and different years that without a mark or another figure only God knows where it came from.
Cheers

Maybe - this is English and near the size and has a lion to left ...
https://en.numista.com/catalogue/pieces60699.html

Hi ,thanks very much for letting me know your thoughts on it, the coin is so far gone I guess we'll never know for sure, just happy I managed to save a load of others, mostly half pennys and pennys,

Why does it always happen that after 1van starts a thread with his coin Sjoelund posts the link to the Wilhelm II 1/2 mark, ZacUK replies saying ‘What - nothing like it ??! ‘, followed by 1van saying ‘Hi, I've clicked on the link you recommended, but it's just took me to a coin page referencing ½ Mark - Wilhelm II type 2 which makes no sense as it's nothing in relation to the coin I've put  ? But nonetheless I appreciate your advice :)’? Weird. I think Sjoelund thinks it’s the link to the rules and guidelines of the forum, but there must’ve been a mix-up somewhere so it’s now the wrong link that keeps getting posted.

Citation: "GoldenGarfield"​Why does it always happen that after 1van starts a thread with his coin Sjoelund posts the link to the Wilhelm II 1/2 mark, ZacUK replies saying ‘What - nothing like it ??! ‘, followed by 1van saying ‘Hi, I've clicked on the link you recommended, but it's just took me to a coin page referencing ½ Mark - Wilhelm II type 2 which makes no sense as it's nothing in relation to the coin I've put  ? But nonetheless I appreciate your advice :)’? Weird. I think Sjoelund thinks it’s the link to the rules and guidelines of the forum, but there must’ve been a mix-up somewhere so it’s now the wrong link that keeps getting posted.

​That's exactly that
https://en.numista.com/forum/topic71935.html
Sorry!

Citation: "Sjoelund"​

Citation: "GoldenGarfield"​Why does it always happen that after 1van starts a thread with his coin Sjoelund posts the link to the Wilhelm II 1/2 mark, ZacUK replies saying ‘What - nothing like it ??! ‘, followed by 1van saying ‘Hi, I've clicked on the link you recommended, but it's just took me to a coin page referencing ½ Mark - Wilhelm II type 2 which makes no sense as it's nothing in relation to the coin I've put  ? But nonetheless I appreciate your advice :)’? Weird. I think Sjoelund thinks it’s the link to the rules and guidelines of the forum, but there must’ve been a mix-up somewhere so it’s now the wrong link that keeps getting posted.

​​That's exactly that
​https://en.numista.com/forum/topic71935.html
​Sorry!

Oh! Now it all makes sense.