J.D. Potter Anodized Brass Sextant, London, mid-19th century, brass arc with silvered scale marked 0-160, pierced frame engraved Potter London, index arm with vernier, magnifier, and thumbscrew, horizon mirror, eyepiece, and ebony handle, all housed in a fitted dovetailed mahogany box with additional eyepiece, and label reading in part: Hydrometer and Mathematical Instrument Maker J.D. Potter Successor to R.B. Bate 31 Poultry, London.
J.D. Potter Anodized Brass Sextant, London, mid-19th century, brass arc with silvered scale marked 0-160, pierced frame engraved Potter London, index arm with vernier, magnifier, and thumbscrew, horizon mirror, eyepiece, and ebony handle, all housed in a fitted dovetailed mahogany box with additional eyepiece, and label reading in part: Hydrometer and Mathematical Instrument Maker J.D. Potter Successor to R.B. Bate 31 Poultry, London.
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