Surveyor's side bubble level by Rochette. Signature on the instrument: ROCHETTE j. Ne quai de l' Horloge a Paris. Manufacturing date: early 19th century.
Instrument with astronomical telescope, silk thread reticle; 20 mm aperture, 31 cm length, shooting focus. This instrument is equipped with a particular system for setting "in station", consisting of only two leveling screws. Which act in contrast between two plates, inside which a system of springs is installed that act in place of the third screw. It is hinged on the upper plate. The crosspiece at the ends of which the two forks that accommodate the telescope are placed; the large bubble is installed on the side.
Brass instrument, in good condition considering its age: look the photos. Walnut wooden box with some accessories; size: cm 36,5 x 16,5 x 11,5. This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip". The seller is "tecnomasio" and is located in this country: IT.This item can be shipped worldwide.