A WWI brass Carl Zeiss Jena "Fussartillerie" artillery compass.

3 3/4 inch dial marked with N W S points, the Carl Zeiss Jena logo, and B.R. 565 FUSSARTILLERIE. 

Compass ring marked 0 - 6400.

Needle marked N. 

Back marked: D17.

left-hand edge marked ZEIL with a 9 cm scale.

Height: 10.5 cm.

Width: 12 cm.

Weight: 0.6 kilos.

For a similar CZJ Fussartillerie compass see the collection of the Imperial War Museum, London, Catalogue number: OPT 292.