MOUNT COOLON GOLD MINES N.L. & WILLIAM MATHESON MORGAN, QLD
This commemorative registered opening of the Sydney Harbour Bridge cover has a blue regitration R. 6 label of Sydney Harbour Bridge/ N.E. PYLON (North East Pylon) and a single red 2d and 3d Harbour Bridge stamps, postmarked SYDNEY HARBOUR BRIDGE N.E. PYLON/ 23 MR 32. The cover was addressed to W.M. Morgan Esq, c/o Mt. Coolon Gold Mines N.L., Private Mail Bag, Collinsville, Queensland. The reverse was not seen (Figure