I have also noticed this quote in Spink, but surely if a coin is UNC whether full lustre or not it merits UNC price. If a coin is toned, does that mean Spink says its EF? Not getting that part at all. Also how many bunheads have we seen in what spink would then regard as ture UNC which would mean with full lustre. Sorry but i must laugh at that quote Anyway back to the post, i believe that ms66 is 1 point short of perfect by USA grading standards, so hence the push in price me thinks. I don't think that is the case though, Dave. As you say there are very few bunheads which would be in what we regard as a pure BU state, and those which are, command a hefty premium over their merely (technically) uncirculated cousins. Have a look at this as an example of as near to BU as you will get with a bunhead. Look at what he's asking for what is one of the more common dates ~ and he will probably get it, or as near as dammit. It's no doubt enjoyed an almost hermetically sealed existence since minting. I think there are UNC bunheads in which all the original underlying lustre is essentially still present, in that there has been no wear to the coin, and when it came out of circulation, probably still presented with pretty much 100% lustre. But time and the atmospheric exposure of well over a century, has removed the surface lustre such that the coin, whilst otherwise perfect, appears brown or black. I would call that BU Mike and not UNC, if we were to go by spink, where a coin with 100% lustre is only UNC, what is their definition of BU, what would they class that coin as.? I have also been watching that Jesus H, it finished at 180 quid