Circular calculator, 'Premier Odds Dividend', painted steel, made by Automatic Totalisators Limited, Australia, 1945-1955
Two circular black metal discs, centrally fixed but moveable, top disc is smaller and triangular section in plastic attached on top. By moving the disc to the appropriate markings one can detremine the odds for win/place/show for a particular horse.
Marked in centre ' "PREMIER" ODDS-DIVIDEND CALCULATOR / MADE BY AUTOMATIC TOTALISATORS LTD. AUSTRALIA'.
Marked on central disc toward edge 'HORSE TOTAL' with gradations from '10' to '1500', then 2000/2 to 9000/2. Also three arrows each marked '3D', '2D' and 'W'. Outer disc marked 'RETURN FOR $1 INVESTMENT' and graduations '1' to '100'. Outer band marked 'GRAND TOTAL'.