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.
a point at which a decisive change takes place; critical point; crisis. 2. a point at which something changes direction, especially a high or low point on a graph. 3. Surveying. a point temporarily located and marked in order to establish the elevation or position of a surveying instrument at a new station. Origin of turning point.