The people standing at the first floor level are at the entrance to the machine rooms one of which is shown in the previous image in the photo gallery. On the ground floor the queueing rails and selling windows are visible which contain the Ticket Issuing Machines (Issuers) the sales of which the machine room equipment records. This Julius Tote installation was performed in 1925. Prior to Automatic Totalisators inventing the world's first odds calculator in 1927, the runner totals were displayed as seen on the side of this building in the numbered windows. The pool grand totals are also displayed in windows above the Win Pool and Place Pool runner totals. The writing on the rear of this photo reads: Back view of Grandstand Showing Machine front. Length of Machine Room about 180 ft (40 Place Issuers 30 Win) Bombay India
There are more images of this system in the Photo Gallery accessible by clicking on the image above.