Last week I bought a photo postcard on eBay. No info on the back other than the obvious, that it is C&S Rhode Island number 59.
Judging from the wood slats on the steel pilot beam and the "modern" steel sided coal bunker, I'd date the photo from 1923-1926.
The image is underexposed but makes a lot of the plumbing detail visible.
Jim Courtney
Poulsbo, WA