The use of a long lens created a special 'look' much favoured for a time. One might say it was 'fashionable'.
I had this lens as a loaner from the national Nikon dealer in the '70s and it was hard to get as production ws low and the lens much in demand. Plus at that time, as a budding scientist, I couldn't afford it
Thuds reluctantly I had to let it go. Many years later I acquired a very nice sample of the Ai'd K-type.