A black-painted brass-framed octant,

Details
A black-painted brass-framed octant,
with silvered scale, one telescope, six shades, mirrors, the index arm -- 7.1/2in. (19cm.) radius, with tangent-screw fine adjustment and clamp, the magnifier on swing-bar, with rosewood handle and trade label for F. Pearson & Co., in keystone-shaped mahogany case

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