A 19th century two draw, leather covered marine telescope, signed, ‘J.H. Dallmeyer, London’ and also underneath the ray shade, ‘W.J. Rideout. The Medea’. Complete with end cap and eye slider, the telescope measures 35.5 ” (90 cms) when extended and 25.5 (65 cms) when closed with a main lens of 1.75″ (44 mm). The first draw is a pancratic eye piece giving a magnification of 20 – 30 x.
J.H. Dallmeyer worked from 1860 – 1894 and producedvery high class quality photographic lenses and invented the first telephoto lens.
The telescope is in very nice condition giving a fine, sharp image when viewing. It comes with a later wooden display stand.