RGS 20 - re-configured as the Emma Sweeny for the Ticket to Tomahawk motion picture - Date? Photographer?

RGS 20 - Lettered and named Emma Sweeny for the Tomahawk & Western Railroad RGS locomotive 20 pulls a movie train consist of D&RGW flat car 1026, RGS caboose 0409, and D&RGW combine car 212 near Hermosa on the D&RGW Durango to Silverton branch - 10 Aug 1949 Robert W. Richardson - Denver Public Library RR-1507.