Antique coffee pot?

Hello I just rediscovered this old tea/coffee pot, I’m not sure what it was for but think it’s epns but can only see pns on the base. Looks very well used which a good sign, I’m wondering how old it might be but only see epns on antique items.guessing it’s English, I might use this if I can get it cleaned up ,
I’ve just started cleaning, any tips appreciated