Coin Date 18??, Weight 33 gm approx., Diameter 35 mm [solved]

Another donation to Oxfam Exeter - can anyone help me indentify this, so that I can price it. Thanks in advance

https://en.numista.com/catalogue/index.php?r=REGENS+40&st=147-150-149&cat=y&im1=&im2=&ru=&ie=&ca=3&no=&v=&a=&dg=&i=&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw= 

 I just put REGENS 40 in the search - yours is the last result 

thanks so much. I'd tried "Regens 40 1829" coin" in Google and got nowhere, because the date was wrong. It still looks like a 2 (to me) for the third number, but it can't be so thanks for your help. Very much appreciate your speedy response.

a couple more questions:

so is the coin 40 Real? 

What does “Pataco” mean in the Numista entry?

Thanks

 Rather than 182? it looks more like 18?2 so is 1812 year. 

I wasn't disputing this - I was just explaining what I'd done wrtong. Thanks so much for your help

 It was the denomination, 1 of was equal to 40 Reis [hence to 40 on it] 

 I had a look on here and it was only used for 36 years, 1811 to 1847 it seems > 

https://en.numista.com/catalogue/index.php?e=portugal&r=Pataco&st=147-150-149&cat=y&im1=&im2=&ru=&ie=&ca=3&no=&v=&a=&dg=&i=&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw= 

janeresearching

 

so is the coin 40 Real? 

 

 I had to look it up, and yes 40 Real though technically 40 Reis as 

only 1 is called 1 Real and 2 or more are called Reis as plural. 

 Guessing it is the same as Penny and Pence in UK coins. :)  

super helpful. Thanks so much