Marked ‘Pat Pend’. It has 6 aperture blades. It does NOT have a lip on the filter ring.
Included (might not be in photographs): Front and rear caps.
Cosmetic: Moderate wear consistent with use. No damage.
Optical: The optics are excellent – free from all scratches, debris and fungus.
Mechanical: Fully working. All controls smooth.
Dust/Haze: A little internal dust. Typical for an older lens, especially a fast one such as this where it is easier to see it!
(Signs of normal use consistent with age. )