Russian Empire. The compass is Russian, officer, the captain Adrianov. Model of 1911. On a reverse side: Compass of the captain Adrianov, model of 1911. improved by officer shooting school. With a stopper, in working order. The dial is covered with lyuminestsvetny phosphorus. The arrow hasn't degaussed!!! more than for centenary service.
Diameter is 50 mm. The arrow clamp stopper is lost. Despite a centenary completely serviceable.