The 2011 edition of the Scott Standard Postage Stamp Catalogue Volume 2 includes countries of the world C-F. Value activity was robust with more than 30,000 changes. Leading the way was the People's Republic of China with more 7,000 changes. Other countries showing a high number of value changes are Colombia (3,101), French Offices Abroad (2,263), Canada (2,120), Chile (1,496) and Ethiopia (1,003). In the People s Republic of China, early issues show generally modest increases in value. The startling increases appear in the late 1950s and early 1960s and the Cultural Revolution era.
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