Plan mining lease blocks 1873, timber hanger on top two brass rings, securing tape, round timber holder on bottom, scroll. On top Schedule of Mining Lease Blocks shown on the plan of the Sandhurst Gold Field, Published May 1873' Names of mining Companies listed with identifying number and area of mine site. E.g. '447 Johnson's Reef Gold Mines 7a, 2r, 8 p (acres, roods, perches). Number linked to the mine site shown on Sandhurst Gold Field map.bendigo, mining, mining lease blocks 1873