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)
Money To see or win money in your dream indicates that success and prosperity is within your reach. Money represents confidence, self-worth, success, or values. You have much belief in yourself. Alternatively, dreaming about money refers to your attitudes about love and matters of the heart. It is a common symbol for sexuality and power. In particular, finding money indicates your quest for love or for power. To dream that you lose money suggests that you are lacking ambition, power and self-esteem. You are experiencing unhappiness and setbacks in your waking life. You may also be feeling weak, vulnerable, and out of control in your waking life. To give or spend money in your dream is analogous to giving love.