Bonsa travel tool set in leather case, incomplete

Older Bonsa travel tool set in a folding brown leather case. The set has a black handle and several interchangeable tool attachments, including a file, corkscrew, knife blade, rule and drill bit.

Bonsa was a trademark of Böntgen & Sabin in Solingen, Germany. Several pieces are marked BONSA or D.R.G.M. 146827 REGISTERED. The exact production year has not been established. The set is incomplete and is offered with the parts shown in the photos. Function has not been tested.

Specifications:
- Brand: Bonsa
- Origin: Solingen, Germany
- Type: Travel tool set with interchangeable attachments
- Marks: BONSA and D.R.G.M. 146827 REGISTERED
- Materials: Metal, leather case and black handle
- Closed case dimensions: Approx. 12 x 12 x 2 cm
- Condition: Incomplete set. The case has wear and discolouration; the tools have patina, scratches and some surface rust. The black handle has a visible crack near one end. Function has not been tested.

Please see the photos for details and condition.