One (1) VERY NICE vintage CBS 6SN7GTB tube. This is an excellent sounding NOS/NIB tube in mint physical condition. I auditioned it in our amp... exceptional sounding tube... perfect looking too! Please look at all the pictures... they're part of the description too. 

 Test Results   (typical new NOS = 3000/3000 Gm)

  Tube-1 = 3100/3000