- N° d'objet4401.144.1
- CréateurSiemens and Hamske (maker)
- DescriptionA German mine listening set. It consists of a wooden box marked 'Horchgerat Waetzmann', containing handset, leads and two dry batteries. It has a hinged lid and three external terminals on the left hand end. One of the two batteries is stamped "1915". On the front of the lid is written "SIEMENS & HALSKE.
- Date1915 - 1915
- Matériel
- Dimensions
- 345 mm
- Depth: 195 mm
- Width: 170 mm