Brian Chanes from premier auction house, Profiles in History, talks about lot#756, a screen used, one of a kind Proton Pack from Ghostbusters.

This item, is part of Profiles Hollywood Auction #49, being held this Monday and Tuesday, July 30th and 31st. This prop is one of two known to still exist and according to Brian, was also used in Ghostbusters 2.

Check it out.