Free filter ring adapter that goes on a Hasselblad B50 bayonet lens to adapt to a 52mm filter ring. Generic made-in-Japan. Free- just send $2 for postage.
I also have for sale a wide Hasselblad strap for $20, and of course you've seen that I have my SWC up for sale, right?
PM me. IF you use Paypal just make sure it's "personal" so there's no fee involved.