Lever Type Collets Chuck. I do not have the part that goes from the chuck to the bed but that would be specific to the lathe you would be using it on.
Set has EE6 (1/2″) to EE14 (1-5/8″) and EE17 (1-7/8″) to EE 19 (2-1/4″)
Missing EE 15 & 16
Made in England