[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/CRIME/06/12/holocaust.survivors.museum.reaction/art.grab.website.jpg caption="The gun used by the alleged Holocaust Museum shooter James von Brunn is too old to be traced, according to sources."]
A law enforcement source says it was not possible to trace the rifle used in the Holocaust Memorial Museum shooting to the original purchaser.
The source, who was not authorized to speak publicly about the investigation, said the weapon is a Winchester Model 6, .22 caliber rifle, and those were manufactured between 1908 and 1928– - long before records were kept on this sort of stuff.
Law enforcement was also checking to see if the weapon had been used in any other crime. No word on any results on that.
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