|Retail Price: $79.99
||AA* Price: $59.99
Almost 15,000 value changes were recorded in Volume 6, which now includes listings and values for Countries of the World San Marino through Z.
The country with most value changes is Venezuela, with more than 4,100 changes. Scott 319, the 1937 25c surcharge on the 40c indigo rises to $440 unused and $350 used, from $400 and $325 respectively in the 2010 edition.
More than 1,700 value changes were recorded for Turkey, many of them concentrated in the 1950s and later issues.
Other countries with significant changes include; Togo, South Africa, Sierra Leone, Spanish Guinea, Spanish Morocco and Uganda.
*AA prices apply to paid subscribers of Amos Hobby publications, or for orders placed online.