Consisting of approximately 10,000 documents pulled from over 50 repositories around the world, including the former Soviet Union, most of this collection is in English, with 80 percent of the foreign-language materials having been translated or accompanied by English-language abstracts. Much of this material has never been published before, and the opening of the Russian and Czech Archives in the early 1990s resulted in significant additions to this collection. Each document is preceded by a control sheet produced by Professor Unterberger listing the sender, recipient, date, repository and a brief description.
A printed guide provides excellent access to this collection. The guide consists of a calendar of documents. The control sheets are also reproduced on the first reel of this microfilm collection.
This is an outstanding resource for the study of United States diplomatic history, Russian history, military history (especially World War I), and European history.