This is one of the most interesting chart I have ever seen:-
i) The UNC price is way above the EF price;
ii) Breakouts in all trendlines in all conditions since 2005
iii) High auction prices done
From this chart, we can see that the Spink Auction in last year for EF was way about the catalogue price then (at least by 30% more) - very unusual.See also that Point A-D, breakouts occured since 2005. Usually, I forecast a breakout when the difference in prices between a banknote condition (say, EF here) is more than 50% of the preceeding price (that's, UNC) so, you can even see it coming in 1998, again in 2005 (but then it is too late). Really, charting is fun to get the best "before it shoots" price. In other word, any banknote of this year will just follow the UNC trend.
