Black rubber Stirnlampe or headlight by cpm

Textbook black rubber pattern Stirnlampe or headlight in very good condition. The Stirnlampe is complete with its complete cable, battery case, elastic head band and even the small blue coloured lens which are all undamaged and functional. The battery case and the rubber cover are both nicely marked cpm which indicates an unknown manufacturer. Everything is in very good and most likely working condition. Beautiful and extremely rare to find complete Stirnlampe from a rare manufacturer! Hard to upgrade!