I don't know where the link is but here is the address of the site----coins.about.com/od/worldcoins/ss/Making-Counterfeit-US-Coins.htm
Thanks for the link! It is more about US coins and ancient Chinese artefacts (including coins) but still interesting. Of course, producing fake coins aimed at collectors is a lucrative activity and it is not that risky...
Nero looks very young and fit on your OP-example (congrats) My only Nero example must be a bit more towards the end of his career?