Thanks Duffy,I knew someone would know on here.These were dug up back in the 60s by relatives that lived in Milton,W.V. Several of my mothers uncles worked for most of the marble companies from the 20s to the 40s when alot of companies went tits up and the rest re-tooled for making ballbearings.I thought that these ugly marbles might be rejects or something but its always nice to know the correct history and certainly a thrill to learn it...Thanks! , Steve