Brass pillar-frame sextant.

Ebony and brass octant.

J & E Troughton trade card

Ebony and brass octant.

Brass Richardson's saccharometer by J. and E. Troughton

Case for Brass framed sextant with stand.

Pantograph in box

Brass framed sextant with stand.

Brass framed sextant with stand, artificial horizon and case.

Artificial mercury horizon for sextant.

Refracting Telescope.

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