The building was present before the Colorado Central RR arrived in 1878, it may have been built after the 1874 fire, I don't recall. It survived throughout the railroad period and was still standing when the C&S track was pulled up in the early 1930s. I don't know when/if it was torn down, but if it survived it was incorporated into a large casino, probably as just a facade mid-block. There are several new additions made to look like 1870s brick buildings on that block, all part of the casino.
Per the Sanborn maps it appears to have had the address 119 Main Street, not quite halfway between Gregory to the east and the junction of Main and Spring to the west.
There are many photos of the building over the years in the Denver Public Library Collection that is available online (
http://digital.denverlibrary.org) and in the various books on the Colorado Central RR and the C&S. When first built it had no mural but by 1878 it had the Temple of Fashion mural which on the west wall lasted into the 1880s, replaced by Blackwell's Durham circa 1890. Over the years the west side mural was overpainted with other large advertising murals, typically gum or tobacco companies (Owl, Beeman's, Bros. Pouch, Dry Climate, etc.). On the east side the Temple of Fashion may have lasted a bit longer, possibly into the early 1890s.
Dave Eggleston
Seattle, WA