Sorry for the bad quality but these were taken in uh, I think summer of 1978 when I went to the Smithsonian for the first time. I was THRILLED to see the ship as I was a huge Trekkie even back then.
T'Bonz, your set looks a lot like the pics I took as a kid in 1974. At that time the model was displayed level and high up enough that you couldn't see the top of the saucer. I also recall something blocked us from seeing the taped-up port side; it was too close to the wall or something:
The original main deflector dish and nacelle domes were lost in California somehow, and this exhibit shows the Smithsonian's first, inaccurate replacements.
Edit: Correction, I took my pics in August, 1977.