field glass

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field glass:

see binocularbinocular,
small optical instrument consisting of two similar telescopes mounted on a single frame so that separate images enter each of the viewer's eyes. As with a single telescope, distant objects appear magnified, but the binocular has the additional advantage that it
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References in periodicals archive ?
Tony Clark), and Field Glass gets the better of Two Left Feet (Sir Mark Prescott/George Duffield) in the Esher Cup.