The barrel of this non-achromatic telescope is covered with plaited whip cord. It has a single brass draw tube and brass fittings that include sliding eyepiece and objective lens covers. The telescope is likely to have been used for making general observations from the deck of a ship.

The maker, whose name is inscribed on the draw tube as 'J. GILBERT / Tower Hill, / London', is probably John Gilbert, who was working in Tower Hill in this period.