A sane price would be in the low thousands. It is what I call a genuine variety and should be sought after. I reckon the guy that went apeshit with his money last time is now satisfied and the market will return to normal levels, but if he's not... It's an interesting question why there were narrow and wide dates which occur every year from 1874 to 1879 (bar 1878), but of course the width of the date is only the tip of the iceberg with many other differences (e.g. thick/thin lighthouse) also in evidence. I don't know what the reasons behind this were, but if anybody knows I would be fascinated to learn.  There had to have been at least one underbidder when the slender 3 penny sold.  I wonder if that fellow now realizes what a narrow escape he had.