via subways beneath the stands. The sub-floor beneath the northernmost stand provides kiosk space, with metal roller doors between the concrete piers opening to Ring Road. The sub-floor beneath the middle stand is utilised as the Cattleman's Bar. Sections of the seating on the northernmost of these open-air stands have been in-filled recently to provide access for horsemen entering the show ring for special display riding. There is a large sign at the back of the northern stand, with the lettering: MACHINERY HILL, which can be viewed from all over the show ring. 7. Marshalling Yards and Stand (1950s) At the northeast side of the Main Arena are the livestock marshalling yards. Above the yards is a substantial formed concrete stand with a raked, open-air seating area. Between the concrete piers which support this structure are sets of sheeted metal gates opening from the yards onto the arena. At the back of the concrete stand is a small, detached, two-storey brick office building. 7a. Commentators' Building The Commentator's Building incorporates the Radio Broadcast Studio, Doctor's Office and Ringmaster's Office. At the southern end of the marshalling yards is another small, detached, two-storey brick building, which accommodates a radio broadcast studio on the upper floor and doctor's office and garage on the ground floor. This building appears to have been constructed in two stages. Attached to the southern end of this small building is a highset, steel-framed extension clad with fibrous cement boarding. This contains a number of offices, including that of the Ringmaster, accessed from a walkway at the rear. 8. Former Commonwealth Bank Building (1929) The Former Commonwealth Bank Building (now the Show Shop) is located to the south of the Main Arena, adjacent to the Council Stand. It is a rectangular, single-storey rendered brick building with a hipped, terracotta-tile roof. There is an early arched entrance on the eastern side, flanked by tall, arched, steel-framed windows with decorative keystones and false balustrades. The present entrance is via a recent, single-storey metal and glass extension at the southern end of the building. The north elevation has been modified at some period, with its earlier arched windows removed. Internally, the building comprises one main interior space (the former banking chamber), partitioned from a smaller space at the northern end, which is at a lower level, reflecting the slope of the land. There is also a later mezzanine storage area at