It is the love, skills, dedication and making the best out of what you had at hand in those days that make these old instruments a showcase. That was and is real engineering. You can still learn from this, you can learn about the right mindset.
Without these forerunners who paved the way we, including the arrogant "it's all old useless crap" engineers, would still sit in trees, making grunt noises and throwing banana peels at each other.