This must be one of the rarest Debden Sets still intact. So many of the Debden 20X prefix £20 notes are seen listed for sale at auctions. I honestly think this Debden Set is the one that has been broken up more than any other over the years. The EPM value is £300 so this offer is very hard to match. It is a bargain buy for a few days only. No charge for postage…..even better!