If you would like to see a pic of any of the items listed here then please send me a message on here and I'll send it across. All items will be listed here for a short period of time before they are listed on eBay. I have no idea how much anything is worth nowadays so if you are interested then please make me an offer via. PM and we'll take it from there
UPDATE - 18/05: Another batch of items have just been sold on eBay - more to go up tomorrow with a couple of buy-it-now auctions in there and an Assassins Engravers proof (early competition prize)!! - CLICK HERE to see my auctions and to get in first!
Here's the list:
Special Stamps and sports
Flagrant cabbage
Assassins three pence with no gum
Eminence Gris (Original penny patrician black with grey hair - mentioned in Going Postal).
Franked UU one penny sport
UU one farthiung sport
Original withdrawn 4p and 6p Thieves guilds (4p had 6448 released befoe they were withdrawn and the 6p had 6262 released) - £3 each
Lancre 'Verence II' 1p stamp with April Fools LBE (this stamp was released for 1 day only in the special April Fools LBE') - £3 for stamp + LBE
Special FDCs
Merchants Guild FDC - special edition which was franked on the day of issue (31-IV-05) by the Ankh Morpork post office in Wincanton. Again, I'm not sure how many were franked with this but I seem to remember it wasn't many.
Going Postal FDC - the one that started it all off. I have 2 of these but unfortunatly one of them has has got a small tear in the middle of the flap at the back of the envelope and the other has had the flap sealed at some point so there is damage where it has been reopened. With both FDCs the rest of the FDC and the inserts are in perfect condition and from the front they look perfect - £10
Hogswatch 2004 FDC - Mint condition - complete with an insert detailing the 'current franking stamps in use as from Dec 2004'
Unseen University FDC - I can't remember the exact story behind this FDC but it features the UU One Farthing, One Penny and Penny Farthing stamps which are all UU franked, and a Royal Mail magic stamp (hankerchiefs) which has been franked 'Royal Mail Bath - 18th Aug 06'
Standard FDCs and other special related items
Seamstress guild FDC
Standard Hogswatch 2005 FDC
Standard Koom Valley 2005 FDC
Proof sheets
A5 sheets
Limited edition Assassins guild single Postage Paid First Proof of artwork - I believe this was a very limited edition prize? Not sure exactly how many were produced?
Seamstress guild - features 9 pink 20 seamstress stamps
Assassins guild Three Pence - features 9 Assassins guild three pence stamps
Assassins guild Postage Paid - features 9 Assassins guild postage paid stamps (basically Zombie stamps without the yellow on the back of them)
Merchants guild five dollars - features 3 Merchants guild five dollar stamps
Koom Valley commemorative final proof - features 2 x dwarves chasing trolls and 2 x trolls chasing dwarves stamps
Thieves guild double proof - features 4 x two pence stamp and 4 x six pence stamp - the top left of each set of 4 stamps is the sport
Bonk 100 Bizot Artwkrke Proof - features 3 100b stamps
Unseen University - features 3 x Penny Farthing stamps
A4 sheets
One Penny Civil - special proof sheet featuring sport and including folder, information sheet and card. Numbered 179 out of 250
Twoshirts - features 6 x farthing, 6 x halfpence and 2 x twopence stamps
Seamstresses - features 6 x Two Penny and 6 x Two Penny Sport
Year 1 set 1 - features 6 x Penny patrician black, 6 x Half Penny Red and 4 x $5 Blue Triangle
Year 1 set 2 - features 2 x 2p Purple, 2 x 5p Blue, 2 x 10p Green and 2 x 50p Cabbage Green
Merchants guild - features 1 x $5, 2 x One farthing (standard and sport), 2 x Penny Farthing (standard and sport), 2 x three Pence (standard and sport) and 2 x Fifty Pence (standard and sport)
Full sheets of stamps
Sheet of Cabbage Trading Stamps (full used sheets with various franks (Red AM frank, Black AM frank). I also have a number of completed CTS cards with various franks. - £5 for sheet or book
Merchants Penny Farthing (incl. sport)
Others
Various bits and bobs from the 2007 DW Jamboree
The Gibbons Stamp Special 150 years issue featuring an article on DW stamps and complete with a special Cunning Artificers Discworld Cinderellas stamp (1 of only 300)

Complete Hogswatch sheets - all of them except 2006 and 2009