497's doghouse disappeared for a while after the new tender tank was built, then it returned. The tender headlight bracket was placed too close to the center of the tender and the doghouse was moved off center to the right. We fixed that when the 497 came to Chama.
Doghouses are made out of wood. No steel framework.
483 never had a doghouse when running on the C&TS. The doghouse was removed in 1968 for the Good Guys& Bad Guys movie and never replaced. Movie companies had an aversion to doghouses and didn't like them on the engines while shooting. 484 lost her's in the early 1970's to a movie shot and it didn't get replaced until the early 1990's or so.