A couple of days ago on ebay, a Clarecraft Nanny Ogg prototype with dodgy ankles went for 844 pounds. (I have no pound sign on my computer).
There is a First Edition Dark side of the sun on sale for 750 pounds.
And this ebay item 170308366171 which is an uncorrected proof of Soul Music signed by TP, JK and CS will probably go for in excess of 1,000 pounds. Out of curiosity, I bid 250 pounds and didn't even meet the reserve price.
And I won't even mention the stamps!
