$382
Ebony 13-inch Radius Vernier Octant by Spencer, Browning & Rust, with bone scale marked 0-95 and engraved with monogram SBR , oxidized brass index arm with clamp, pinhole, mirror and shades, (one edged chipped and corner of scale damaged), in black mahogany case with painted green interior and label of Samuel Thaxter & Son, Importers and Dealers in Nautical and Mathematical Instruments, No. 125 State St., Boston .
Auctioneer:
Skinner
Date:
2005-05-03