The materials and procedures of the 19th-century lithographer are duplicated in almost every respect by the contemporary hand printer. An image is drawn with tusche (a carbon pigment in liquid form) and litho crayon before the printing surface is fixed, moistened, and inked in preparation for printing. The printing itself is done on a press that exerts a sliding or scraping pressure.
The dream about keys is a dream that refers to solutions to one's life problems. The question you have to ask yourself when you have this type of dream is 'what is the problem I have today that needs a solution, or a key? (read all at source)
Dreams About Ruler: An Interpretation of the Ruler Dream. To see a ruler in your dream, indicates your concerns of not measuring up to the standards of others. It may also mean that you need to be careful in making a decision or judgment.ince the start of life, folks have wanted to understand the message of their dreams.The Ruler dream is no unique from many other forms of dreams. Most individuals have the Ruler dream and desire to determine precisely what it implies. On the next paragraphs you will see a regular meaning belonging to the Ruler dream.