Lens ring has been used, but it looks and works good. It has minor scratches from use. I don't see any dents. It works good. Threads are not damaged, or bent.
Upper ring is 24mm (series IV upper threads) . Please note that adapter will be mailed as pictured, with original box. You get filter holder with retaining ring on top.
Adapter will hold one series 4 (IV) glass filter, diameter up to 20-22mm. Lower threads are 14mm.
Shipping is free within USA and $10 worldwide.