This is a factory Featherweight barrel with original finish. It was manufactured between the years 1957 and 1963, based on the #7 sight ramp with 18 lines.
Bluing - 90% with some light wear and several small surface rust spots on the left hand side of the barrel.
Metal - Very good based on expected light pitting under the rust spots mentioned above. Otherwise excellent.
Bore - 6/10 borescope verified with some wear and heat in the throat area. This barrel still has plenty of life remaining, but is not perfect.