Test Shot of Fully Lit Guardian of Forever on Soundstage
This shot shows the soundstage with the Guardian of Forever from the TOS episode City On the Edge of Forever. Visible are all of the lights in the guardian, the forced perspective showing the small, close though meant to look far away columned structure in the back, the roof of the soundstage on the upper left, and considerrable detail on the surface of the guardian itself including the small red splatter dots on the left and right side which I always thought were image defects but clearly are features on the prop.
I surmise that this was a test shot rather than one from the actual episode filming - it has deep depth of field and shows the forced perspective detail, it has more complete and whiter internal guardian lighting and it is missing the toppled column that was present in much of the final episode when the actors appeared (the colum was leaning on the cornice fragment visible in the lower center of the opening and helped hide some of the forced perspective detail). Also as it shows the soundstage ceiling it would have not been used as shown.