Silva
Swedish company, known for compasses and orienteering equipment.
The brothers Björn and Alvar Kjellström and Gunnar Tillander started Silva in Stockholm in 1933. They wanted to make a compass that was easy to read and use on the map, for orienteering races.
The compass with a liquid-filled capsule on a transparent plate spread across the world. The company has also made headlamps and other equipment for outdoor life.
The Silva name on the plate.
The transparent plate with a ruler and a rotating compass housing.