 DUISBURG. Duisburg Rowing Club Medal, 1983. .999 Niobium, 40.3mm. Obv. St. William in Gothic style. Rev. Stylized oars, RUDER-WM/ Duisburg and date. One of 1,400 struck, first medal made of pure Niobium. Known in the U.S. as Columbium, this rare metal was once promoted by Joe Segel of the Franklin Mint as a key component of a proprietary alloy intended to replace Silver in U.S. coinage in the early 1960's. Struck by the Munich Mint, in rigid plastic holder with leaflet. Gem Brilliant Proof. (Est. $1,000-$1,500)
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