hi,i saw a aricle recently about playboy casino chips worth alot being uncovered under a sidewalk where they were made,in mississippi,back in the 70s.The owner said they didnt dispose of any chips, but this reminds me of the kabar knives being buried under the sidewalk,of the old plant bescause they needed sidewalk filler,does this sound like what these chips might have been used for.just an interesitng story.thanks.