The bridge had been modified into the white-and-chrome 1701-A form it knew for about five seconds at the end of ST IV, but only partially -- the entire front half of the set, which was not shown in that scene, had remained gray and was marred with sprayed-on burn marks as was seen in ST II and III. The crew chairs were missing, for someone had vandalized them with a knife a few weeks earlier and they were away being re-upholstered. Also, it tickled me that the outer side of one of the turbo-elevator doors (the side of the door that would have been visible from inside the turbolift) featured a big "Valvoline" sticker, apparently placed there by a member of the production crew.