It's still there. Speaking of pictures, I saw photos of the Westinghouse machine shop probably back in the early 1900s and everyone was wearing suits. Maybe they dressed up for the occasion, but the photos weren't posed, the guys were working. Can't recall if ties were worn. There'd be safety reasons not to, but some of the other stuff I saw in the plant showed that our concept of safety wasn't a consideration back then*.
The class of folks Gable worked his way into trended to dress up for specific occasions. One had shooting clothes for shooting, etc. But most of those folks had minions to clean the guns. Possibly a posed picture? I ask this because of the duds. Gable was an avid sportsman.
*There were a pair of generators/motors that powered the rotor test pit. They were works of industrial art. An open cage for the stators about 6 feet in diameter and the rotor bearing housings were held in swooping arms top and bottom connecting them to the stator housing. All so one could see the wonders of electricity at work. OSHA made them put up railings so folks couldn't fall/walk into the works. Also made them put railings around the control panel for the pit due to the open knife switches (4K volts).