By Gary Combs
In 1984 David Skipton introduced the Reverse Sort. Nearly a decade later, Gary Combs rendered a forward sort of the same work of over 18,600 entries and corrected a few minor discrepancies. This work first appeared in English, and was subsequently reworked to produce a Cyrillic version. Both the Cumulative Alphabetical List and its partner publication the Reverse Sort offer the postal historian and cancellation collector the most comprehensive listing of locations available, albeit not a complete listing of all possible locations. An effort to produce a document of that magnitude would clearly exceed the size of this work. This work represents the largest single cumulative listing of Russian locations in existence in the Western world.