The NSU 1200 was the last of a long series of NSU's that started with the NSU Prinz in 1958 as the first car after WWII of NSU. Around 1968 the more sporty cars started to appear with the NSU 1000 TTS and so on. The NSU 1200 SS was, as many of Lombardi creations, a one-off.
It looks like both pictures made at the same occasion. The only differences seems the position of the camera.
The color pictures are recently found on a french forum about unknown cars.