Photographs 
Home Page Photograph, Deepwater Horizon; May, 2010

Below, Duval County, 1994. The rig has been skidded away, the old BOP stack has been unbolted and is coming off the casing head. At lift off the ring gasket came loose and shot out like a rocket, never to be seen again.
Photo by Mike Shellman, Boots and Coots, Inc., Houston.  

 
Ring Gasket 2.jpg