Some recent Alien drawings auctions on eBay:

RICHARD HESCOX ALIENS GAME DRAWINGS # 9 LOT/5
US $9.95 (0 Bid)
End Date: Sunday May-20-2012 18:40:05 PDT
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RICHARD HESCOX ALIENS GAME DRAWINGS #12 LOT/4
US $9.95 (0 Bid)
End Date: Sunday May-20-2012 18:40:07 PDT
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RICHARD HESCOX ALIENS GAME DRAWINGS #15 LOT/5
US $9.95 (0 Bid)
End Date: Sunday May-20-2012 18:40:10 PDT
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