I love the umbrella photo, Barbarian. I have a small collection of vintage umbrellas and parasols.
Here's one of them-
That's an interesting hobby. Are there many people who collect umbrellas? I've been told that 50 years ago, umbrellas were much more sturdy than modern ones.
My weaknesses are old cameras, slide rules, and small frog or toad figurines.
It always amazes students (and now most of the math teachers) when I point out that slide rules were the way we figured out how to go to the moon. For about 350 years, slide rules ruled. Then with the advent of pocket calculators, they ceased to be used almost overnight.