Zipp 188 campy hub adapter with all components, washers.  Take-off from late 2010 Zipp 404 wheel.  PO estimated 1500 miles so lots of life left.  I believe that this hub adapter fits 2009-2012 Zipp 188 hubs.

$65  (new prices: Zipp $176, eBay typically around $110 and up)

thanks!
Jeff