Cooke Datal Anastigmat 1 Inch f/1.9 Taylor & Hobson Camera Lens 293939. Hard to find lens from a huge estate collection. It does need to be cleaned a bit a as it has been sitting in storage, selling as is though it seems to be in good condition. The person who had this had a very unique large lifetime collection so I will be listing other related items. Thank you for looking and don't miss out on this great find.