Some interesting details in this picture. The 497 seems to be working considerably harder than the 493. The radius rod appears to be in the (or close to) full forward position and the exhaust from the stack looks to have a lot of force behind it. The 493 however looks to be hooked up in more of a company notch with a much “lazier” exhaust from the stack. I’ve read the stories of the 97’s hated throttle. Could this be capturing a “battle” between an engineer and his locomotive?
Cool stuff! Thanks!
Alan