Thanks, but I actually needed a high-resolution image, with the full frame and the soundtrack. The images you just posted are still lossy reduced conversions; the background details are too fuzzy, vague or crushed for me to compare them to the Senator screenshot. I have to use the paneling on the right wall as my reference, but the whole right side just shows up as black on these screens.
Do you have access to the full-size frames right now?
Also, I made a mistake in my framing chart - I used the modern Panavision aperture of .825 x .690 instead, which is actually a little smaller than the older .839 x .700 aperture that was in use in '77. I'm found an even higher-res scan of an older SMPTE RP40 chart; this time it's the complete frame, including the soundtrack area.