Octant and case, made by Spencer, browning & Russt, London

octant and case

INSTRUMENTS - OCTANTS
Mayo, Henry F.; Spencer, Browning & Rust
ENGLAND, London; USA, MA, Boston
1784-1840
LOA 12-1/8 in.

Boxed octant, ebony, made by Spencer, Browning & Rust, London, SBR stamped in the scale (between 50°-55°). Secured to case by 3 zinc strips and screw. Cover label reads: Henry F. Mayo Atlantic Ave. Boston.

1962.1279