Why did some big steam locomotives have what appear to be multiple rivets or bolts on the boiler? - Quora
Cut-away of a boiler in a steam locomotive. National Railway Museum. [1600x1067] xpost /r/steamporn : r/ThingsCutInHalfPorn
![High-efficiency steam engine boiler, retro model marine boiler model, diameter: 105mm, full water capacity: 850ml High-efficiency steam engine boiler, retro model marine boiler model, diameter: 105mm, full water capacity: 850ml](https://ae01.alicdn.com/kf/S9f7f6d1f26794a85ba0badc8bb3e1a12q.jpg_640x640Q90.jpg_.webp)
High-efficiency steam engine boiler, retro model marine boiler model, diameter: 105mm, full water capacity: 850ml
![Best Kept and Awesome Boiler Fundamentals for Steam Locomotives | by Terry Day | ILLUMINATION | Medium Best Kept and Awesome Boiler Fundamentals for Steam Locomotives | by Terry Day | ILLUMINATION | Medium](https://miro.medium.com/v2/resize:fit:975/1*f8PnVVZRfGWPcPAPr1cOBQ.png)