I did a search and did not find this.
At there fair there are 2 vendors next to each other. Both of them sell differant items. Between the 2 of them you can buy rare jems, Heavy knothide leather, rare herbs (black lotus and Fel lotus plus others) , mana and health pots ( bought them for 1g less then ah) and scrools from lvl I to V. I made a char and ran it out on my 2nd acct, over the last weekend I made over 700g. This was done with no real effort just had the 2nd acct. open while I played my main and checked the vendor when I thought about. Vendor names are below.
Lhara - Exotic Goods
Professor Thaddeus Paleo