It measures 4 fully open and 1.30 closed. The objective lens measures almost 1.5 diameter. It gives good clear views.The item "6 draw monocular spy-glass, telescope Smith, Royal Exchange. 1817-18" is in sale since Monday, October 29, 2018.
This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "marl727" and is located in Blackpool. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.