It had crossed my mind that Kings Norton may have been producing for other countries at that time on smaller blanks. I suppose that Michael is right and the RM would have to be the first port of call. Don't bother going to the RM unless they are expert on the Kings Norton output. Kings Norton produced their own blanks - not only that but, according to Freeman, they supplied blanks to the RM from 1912 - 1919, which I guess is why you sometimes see 'red pennies' that aren't 1918/19KN. The question is, who else did they do business for, and could a blank from another of their contract jobs have got mixed up with the RM sub-contract? Or, maybe it was just a duff item that slipped through their inspectors (or maybe they had RM inspectors on site who dozed off late Friday afternoon). Either way, I agree with those who say 'take it back' for a refund (unless of course, he sends it uninsured and "you don't receive it" .. now there's a thought!) My reasoning was that the Royal Mint supplied the dies and should at least confirm the use of a correct die, negating the forgery issue? With Dave being a Scotsman I thought he would rather take the free examination than pay Robert £30 Ok so he's replied and said if i get the coin authenticated then he'll pay double what it sold for, so i have said that if thats the case then he should also pay for authentication. Whats the name of this guy John who does this authentication work, and perhaps some contact details if possible. PM me if you don't want to hand them out here. 400 posted a link to his site on the previous page Dave. His name is Robert Matthews and he does a comprehensive report for you together with digital ID pics of the coin in question. Thanks John, will send an email or quick phone call, just out of interest, how long does the process take? Just had a look and cannot see his email address, it says contact webmaster but i don't have an email client such as outlook etc so if you have his direct email could you PM me with it.