More than 16,500 value changes are recorded in Volume 6 of the 2014 Standard catalogue. Value increases are scattered among classic-era issues and recent modern (2000-present) issues. Almost 2,300 value changes were made in North and South Vietnam, along with more than 1,800 Sierra Leone.
A significant editorial enhancement has been added to the common-design listings that appear in the catalogue introduction. Each individual set within each subject listing now has a set total, and a set total is provided for all the stamps in each subject. Each set total is linked to the corresponding total within each country’s listings in our database. This means that the totals will automatically update when values are changed in a given country.