From Profiles In History’s latest auction, a prop sign from the New York firehall location.
403. Parking sign from Ghost Busters. (Columbia, 1984) White with red letters aluminum parking sign printed, “RESERVED FOR GHOST BUSTERS, ALL OTHERS WILL BE TOWED AWAY”. From the first Ghost Busters film. Most likely used for the Ghostbusters’ vehicle, the ECTO-1. $400 – $600
Thanks to PKESurge for the heads-up. The auction is by registration only, but it may not be too late yet.