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BULLOCH CONGRESS MODEL
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Two fine William Wales objectives are present. One is a 1 1/2 inch focal length signed 'W. Wales, N.Y., 1/1/2' housed in a can signed 'W. & G. Wales 2 in., The other objective is also signed 'W. Wales, N. Y.' and although it does not have its focal length inscribed on it. I would estimate its focal length is about a 1/4 inch. Its can is
unsigned except for a focal length listed as '2/3.'