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The Mineralogical Record website says, "Georges de la Bouglise was a prominent French mining engineer involved in mining operations in Europe, America and Mexico. F. Augustus Heinze, for example, one of the Butte "Copper Kings," organized the La France Copper Company in 1905 solely in order to lease the Lexington mine from its owner, Georges de la Bouglise, the original vice president of the Societe Anonyme des Mines de Lexington. Bouglise was also a serious mineral collector specializing in native gold specimens."
"After his death, Bouglise's considerable collection of gold specimens was offered for sale at public auction on December 14, 1911, by the Parisian mineral dealer Alexandre Stuer, and it was purchased in toto by Albert C. Burrage of Boston, Massachusetts. The collection subsequently found its way into the Harvard Mineralogical Museum in 1948 as a bequest of Burrage, who was a member of the Harvard class of 1883. The treasure remains there to this day."
Another page at the Min Rec site calls this catalogue "Extremely rare".
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