A model of a Cromwell halfcrown surely ? How else could it be so much smaller than a bronze penny? That'll be because the bronze penny (as featured on the front cover of the Spink 2012 catalogue) is greater than life size. Ah! As a non-owner of the latest Spink it would explain why I didn't spot it as a picture. Also, it's unusual for Spink to feature more than one coin on the cover. Are there any doubts as to its authenticity from the pic, and if not what's a good price do people think? Twice bitten! Paulus at risk of causing offence to you and many others can I just point out (again) that there is life outside ebay. Try a genuine dealer or an auction house and at least you will have some form of assurance that all is well (and no I don't have a Cromwell halfcrown for sale). I have no reason to doubt that the coin is genuine or that the sale is also genuine but I would just like to draw your attention to the fact that it is on a private listing, which leaves you wide open to shill bidding. Good luck. Absolutely no offence taken and I won't be bidding, it is already too rich for me! As I understand it, shill bidding will only catch you out if you end up paying more than you originally intended, or more than it is really worth, have I got that right? Far from an expert on these matters and value your input as always!