300 Million year old machinery found in lump of coal

Russia:  Interesting - a man found a piece of machinery in coal which is 300 million years old.  There is lots of speculation as to where it came from. From an alien?

http://beforeitsnews.com/beyond-science/2013/01/300-million-year-old-machinery-found-in-russia-experts-say-aluminum-gear-not-the-result-of-natural-forces-may-be-extraterrestrial-2440610.html