Found! Apollo 11 1st stage engines.

[deanm]

And in remarkably good condition, given that they've been sitting on the Atlantic sea bed for 40+ years!

http://www.news.com.au/technology/amazon-founder-jeff-bezos-finds-recovers-engines-that-lifted-apollo-11-to-moon/story-e6frfro0-1226602198036

Dean

[pluto]

They don't know if they're from Apollo 11 yet but let's hope so!
http://www.bezosexpeditions.com/updates.html