How can I identify the backrest cylinder of my old Charvoz-Dauphin or Dauphin chair?
Most Dauphin chairs are equipped with a second, smaller pneumatic cylinder, which controls the movement of the backrest. This cylinder contains a non-toxic, inert compressed gas, lubricated by a few grams of mineral oil. Sometimes, after many years of use, the integrity of the cylinder is impaired. In most cases, the cylinder can easily be replaced in the field by the user.
