Have been removed some sratches, repaired the most serious damages of the mimi and re-patinated. Sentoku and shinchu can achieve a wide range of colours yellow green, green-brown, brown, black. Although patina on brass is not too resistant against rubbing and also is sensitive to enviroment and handling conditions. Also surface unevenness can negatively affect patina appearance by darker spots. On some antique example you can see all foregoing colours presented on one piece. Yellow green tones on the most exposed places and brown to black on places hidden protected by higher elements like wide mimi or high relief.