Watermarks: Bills from following 2004 Use a watermark seen from either aspect when held up to a light. A 500ml bottle can thoroughly clean around 100-200 banknotes, according to the level of staining and the level of solution employed per Observe. For heavily stained notes, you may need extra solution. https://chanceilifb.vidublog.com/37672200/rumored-buzz-on-100-hong-kong-dollar