Vintage Clear Glass Eyecup Eye Cup JOHN BULL

Up for bid is this vintage clear glass JOHN BULL eye cup. Bottom is marked PAT. AUG. 14, 7 TRADE JOHN BULL MARK MADE IN U.S.A. REG. U.S. PAT. OFF. Stands 2-3/4" tall. In very good condition. NO chips or scratches.

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THANKS FOR LOOKING!!!