Bally Strange Science Pencil Drawing Great Concept Set

This is a original pencil concept drawing set  that was used to design the Strange Science Pinball Backglass.  This is a multi-piece set with some cool not seen in decades designs that were drawn but not used.   I would like to sell this as a set, however I will break out a particular piece if you want to make an offer.

Very few of these original drawings come up for sale as these are unique one of a kind sketches.   This about  backglass size.     A very great iconic piece that would be the pride of any Bally pinball collector.