To add to the history already given, this McQuarrie design was eventually adjusted and became the USS Discovery for the show Star Trek: Discovery.

Many thanks for the info. I knew a little about its design but nothing of its history thank again for the info

There is actually alot of info on this. It's the Ralph McQuarrie design for the refitted U.S.S Enterprise for the abandoned Star Trek film Planet Of The Titans. He built a wood and cardboard model of this design, and after the film was reworked into the failed Star Trek Phase II series, somebody at Paramount held onto the model, and during the Next Generation series it was repainted and used as a small starship in the background of the Spacedock shots.