Sasquatch - Really nice photography of that 265.
All the S3's were delivered as coal burners, but 267, 263 and maybe one other (264?) were converted to oil for service in the "gap" between the electrified sections. All steam engines operating in the gap ran on oil due to Idaho rules aimed at preventing forest fires. So, running 267 as a coal burner is prototypical. I'd still like to have an oil-fired S3. I've been thinking about converting my Weaver brass model, which is decorated for 267, but I haven't been able to locate a photo of the top of the tender to show me how to make an insert. To be really prototypical I'd also have to remove the ash pan - not sure how much work that would be but I'm betting it wouldn't be fun.