Coin Grading Tutorial. View grading tutorials for currency and other collectible types. Coin grading is done both by adjectives and on a 1-70 numeric scale, and standards are developed enough that most collectors will be able to agree on how a coin should look given how the coin's grade is described.
Two point perspective drawing is a type of linear perspective. Linear perspective is a method using lines to create the illusion of space on a 2D surface. There are three types of linear perspective. One point perspective uses one vanishing point placed on the horizon line. Two point perspective uses two points placed on the horizon line.
Linear Perspective. Linear perspective was invented by artists in the 1500s. It is a great way to create realistic 3 dimensional drawings because it reproduces the way we see. This is achieved by drawing lines which converge towards and appear to meet on one or more vanishing points on the horizon.