For sale is a super rare Poteque Pharmaceuticals ‘Draftsman’ GI-2 implant. Originally released in 2007, the implant was removed from the LP store and deactivated by CCP in 2008. Almost none exist today. The implant originally gave a 5% boost to invention success but is now just a collectors item.
Price: 8 Billion Isk. Located in Jita 4-4
You can read more background on the item at