The catalogue reports competing interpretations of Maury Island fragments: a military and FBI analysis attributed them to a Tacoma slag mill, while an analysis published by Ray Palmer and Kenneth Arnold listed multiple elements.
“Military and FBI “analysis of the fragments shows them to be from a Tacoma slag mill.””
Source: Preliminary Catalogue Of Analysis of Alleged "Fragments" Reportedly Associated With Sightings Of Unidentified Aerial Phenomena
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