Vintage Rolling Rule English Brass Scientific Instrument, Navigation, circa 1950

This is an antique rolling parallel rule. An English, brass scientific instrument to aid navigation, dating to the Edwardian period, circa 1910. Attractive period instrument withi...

This is an antique 2 draw telescope. An English, chromed brass terrestrial or astronomical refractor, dating to the late Victorian period, circa 1900. Perfect for bird watching, landscape appreciation, wildlife, or maritime observation. Equally suitable for observing the night sky. Supplied with a London Fine oak and brass 'Captain's Stand' for display. Of generous proportion when fully drawn, and neatly stowed in its own case Displaying a desirable aged patina, some light marks commensurate with use Leather covered primary barrel tanned in dark green with some light colour wear Polished draw tubes show bright silvered tones, lightly marked from gentle use Presenting a clear optical performance, with a 34mm (1.25") primary objective lens Lift-off dust cap to the objective, the flared eye cup...

English (19th Century) brass and leather hand held telescope

19th century sikes hydrometer set circa 1890. Good quality presented in a mahogany box, with brass catches. Labelled on the cartouche ' sike's hydrometer' and a 56 stamford street ...