Bow construction (Gambargin)
Dress or equipment
Diagrams, cutaways, or architecture
(media.piefed.social)
Here's the source, for those having problems seeing:
https://nitter.net/pic/orig/media%2FHImPtTSaIAAdm2G.jpg
Interesting how the modern bow uses techniques (but maybe not materials) that could possibly have been used hundreds or even thousands of years ago. I guess Leonardo never turned his attention to bows?