The hypothesis of the partly inflationary character of the German internment camp money during the First World War and of its doubtful numismatical value, as set forth here, is borne out by several other observations. There were very few complete or almost complete collections of “Gefangenenlagergeld” even in Germany, the most important ones being that of the _Reichswirtschaftsmuseum_ in Leipzig, where one specimen of each type of _Notgeld_ was officially deposited by the _Reich_ as issued, and that of a private collector, Doctor Arnold Keller of Berlin, the publisher of _Dr. Arnold Kellers Notgeldbücher_. In Holland, there was also a collection outstanding because of its completeness, namely that of Mr. Paul Daub of Utrecht, a private collector. The American Numismatic Society, in due recognition of the given situation, rightfully did not care to acquire complete sets of this money, either during or after the war, but contented itself with a few specimens only. There have been a few private collectors in the United States none of whom seems to have attained great achievements in this field. None the less, the interest is still kept alive to some degree in collectors’ circles through the “International Emergency Money Club” of New York City, the only club of its kind in existence, founded in 1936 in New York City, with an active membership of thirty in 1942. [Illustration: Different Types of War Prisoner Money] Beginning as early as January 1917 the well known firm of J. Schulman of Amsterdam offered complete sets of such money in a series of consecutive catalogues on war money, entitled _La Guerre Européenne 1914-1917_. Here collectors could obtain almost all sets available which were probably secured from the official authorities of issuance in Germany. The international reputation of the firm of Schulman in Amsterdam is too well established to permit reflection on the ethics of its business transactions. Merely for the sake of clarity it should be stated that none is implied here. Obviously, numismatic interest turned quickly to the items of this previously little known type of war emergency money. In the very beginning, most probably, everyone thought that it would be a quickly passing numismatic phenomenon. No one could at that time realize the dimensions that production of war prisoner money would finally reach. All this notwithstanding, the literature on this special kind of money is scarce, incomplete and widely scattered. The appended select bibliography might therefore be welcome to those interested in this field of collecting which probably will be revived soon after the return of peace. It is needless to state that no claim is being made of completeness in the bibliographical data offered below.