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)
Locks and keys can also be used to protect oneâs most valued belongings or to secure the gates of a walled city, so having a key is both a symbol of trust and conquest. Back in the day, keys were used as a means to flaunt your wealth, as they indicated you had something worth stealing.