Conversely, copyright bills, frequently printed on less expensive paper for example wood pulp, take in the ink speedily, resulting in a darkish brown or black mark. This swift coloration change serves as a solid indicator of opportunity counterfeiting. The copyright detector pen is incredibly straightforward. It has an iodine Answer https://antibreezechemical99887.anchor-blog.com/19305109/the-smart-trick-of-100-dollar-hong-kong-that-nobody-is-discussing