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)
What do dreams about diamonds mean? Dreaming of diamonds may represent marriage or commitment; may represent something hard or permanent; may represent materialism and wealth. Dreams about diamonds may be a reminder of an upcoming birthday or anniversary. Diamond is the gift for the 10th, 60th and 75th anniversaries and is the birthstone for the month of April. Consider the phrase âdiamond in the roughâ meaning someone or something may have great potential even though they may not look so. Diamond Ring dream meaning A diamond ring in a dream may represent a proposal, a promise or a commitment; or it may be wish fulfillment if you are anticipating or waiting for a proposal from your boyfriend. To dream of losing your diamond ring may suggest that something is missing in your relationship.