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Paper currency grading is the process of determining the grade or condition of a bank note, one of the key factors in determining its collectible value. A banknotes grade is generally determined by crispness (Rigid, not limp paper), brightness, and depth of color.
Generally, the paper used is different from ordinary paper: it is much more resilient, resists wear and tear (the average life of a paper banknote is two years), [8] and also does not contain the usual agents that make ordinary paper glow slightly under ultraviolet light. Unlike most printing and writing paper, banknote paper is infused with ...
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While people began collecting paper currency more systematically in the 1940s, the turning point occurred in the 1970s when notaphily was established as a separate area by collectors. The term was coined in 1970 by Robert Stanley, a linguist then employed as Public Relations Manager of the collectors and investments firm Stanley Gibbons , in a ...
Applied to the production of paper currency, copper-plate engraving allowed for greater detail and production during printing. It was the transition to steel engraving that enabled banknote design and printing to rapidly advance in the United States during the 19th century.
Infinite Monkeys is headquartered in Singapore.The company was founded by Alice Gugelev, David Hoare, and Jay Shapiro. [2] [3] The beta version of Infinite Monkeys was released in September 2011 and went live in December 2011 at the AppNation conference in San Francisco. [4]
Module:Chart creates bar and pie charts on Wikipedia without need for external tools; Many spreadsheet, drawing, and desktop publishing programs allow you to create graphs and export them as images. gnuplot can produce a wide variety of charts and graphs; see samples with source code at Commons. In Python using matplotlib
The following code generates the pie chart shown at right. Note that the default chart size and colors are used, and the value of "1" for the "other" parameter is only used for its "truth value" as a visible string—i.e., to say, yes, we want an "Other" entry in the legend (the same chart would result if "0" were used).