These binoculars were custom-made by the production for use by Christopher Lloyd as "Dr. Emmett Brown". Doc uses these binoculars to see Marty Jr. in 2015, he also uses them to get a close look at Griff and his gang as they are arrested. The prop is constructed of metal and plastic. This exact prop is also featured in the Hollywood SFX museum prop book from Japan. For this item, our ScreenUsed COA is co-signed by Bob Gale, producer and writer of the movie.