very nice farthing, looks to be in a very nice grade, laurate head 1826 too, this farthing i would put at about £20-30 due to it being the scarcer type for the year and a very good grade, the knock on the obverse does retract a little from the value, still a very desirable piece, and i really wouldn't be surprised if it was up to £50. ok as for grade, its extremely fine, as for value, as i said above, in the book EF is £50 but books are not always accurate and there is a knock on obverse