Unknown coin?

[Dunimal]

Hi all, I found what appears to be a bronze coin in a ploughed field in Cornwall, the field has produced Roman in the past. It is certainly made of bronze and has been made slightly concave
Measures 23mm approx diameter, I'm sure it was initially completely round and whilst it doesn't look Roman could it be a earlier
bronze Celtic coin?
any advice/help appreciated

 

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[Aussie]

Great find.
I'm sure crusader will help you with that one. 👍

 

[CRUSADER]

Its a Spanish hammered coin, [SIZE=-1]maravedis[/SIZE], but its likely 17th C!

 

[CRUSADER]

[FONT=Trebuchet MS, Geneva, Arial, Helvetica, SunSans-Regular, sans-serif][SIZE=-1]maravedis:
'Like' this:
http://www.ancientresource.com/imag...panish-copper-coins/spanish-copper-cs2074.jpg

[/SIZE][/FONT]

 

[Dunimal]

I have to say Crusader you know your stuff, thanks for your help, will be posting some more as we spk, interested what you make of them