Thanks for posting. It is a neat view.
There are several of us with the SPng Historical Society that are watching this seller's items. But we watch carefully.
Good chance that this image is now in the collection of CSRM. CSRM obtained/received the Haig collection some years ago. Also, CSRM has a scrapbook put together by T.L. Williamson who served as Assistant Train Master and Assistant Road Master out of Mina (both directions - sg and ng) during the 20's.
Several of the section crews on the line seem to have had dogs. Below is a couple of photos and caption that were in the SP employee magazine
The Bulletin from January 1921.
Brian Norden