ok... is this a fossil of some kind? any ideas will help!

[djg]

i originally posted in the what is this... got a few interesting ideas, but concensus was to have it checked out... so i thought id throw this one at you all...
crazy heavy 'egg' 'rock'...
i am so very fortunate to be hunting through a pre civil war barn, that has been stuffed by each owner and never cleared... I know, AWESOME!
I came across this on the lower level, just inside the 'foundation' (crumbling).... it is not just a rock... what are your thoughts?

 

[Harry Pristis]

My best guess is that this is a nest egg . . . an artificial egg placed in a nest to encourage a chicken hen to lay real eggs. "Nest egg" in this sense is the basis of the popular financial simile.