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| style="text-align: center;"|[[CPUSA#Secret_apparatus|Secret apparatus]]
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| style="text-align: center;"|[[Silvermaster group]]|-|style="border-bottom: 1px solid #ccc"||-| style="text-align: center;"|<small>[http://en.wikipedia.org/w/wiki.phtml?title=Template:Ushistory&action=edit Edit this box]</small>
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'''Irving Kaplan''' worked in the United States [[Department of the Treasury]] and for the [[Foreign Economic Administration]]. Kaplan was the chief advisor to the Allied Military Government for Occupied Territories in Germany on financial and economic matters after 1945. He received an 'E' rating from [[Harold Glasser]]. He was associated with both the [[Perlo group]] of spies and the [[Silvermaster cells]] and was employed by [[David Weintraub]] in the United Nations Division of Economic Stability and Development from February 1946 through November 1952. The [[Federal Bureau of Investigation]] (FBI) has submitted eighteen adverse reports on Kaplan.