The pilot was landing at the strip for the first time. He had contacted the owners agent, prior to departure, to obtain details of the strip. On arrival over Meda the pilot carried out an inspection of the strip which indicated that, although there were areas of long grass, it was suitable for a landing. During the inspection the pilot observed a set of drums marking one corner at the approach end and another, single drum, marking the other corner. No other drums were visible however, the grass covered area beyond the drums appeared to be free of obstacles. There was a strong south-easterly wind blowing when the pilot made an approach and landing towards the east and into the rising sun. During the roll-out, after landing, the pilot observed a drum directly ahead of the aircraft which, until that point, had been concealed by the grass. The pilot attempted to take avoiding action but the left main wheel collided with the drum. The drum bounced up and struck the wing causing substantial damage to the skin. The early morning sun had given the whole grassed area a golden reflective appearance making it difficult to see any objects located within the landing area.