all summed up in one stamp, how the Wright Brothers invented a launch system and powered their airplane, with an ingenious weight and derrick system

Yup, I got one of these stamps in my little stamp book of a wire bound 3 by 5 index cards (64 of them). And it wasn't until I did my family tree this summer that I learned I'm distantly related

https://www.alamy.com/stock-photo/weight-and-derrick-system.html