7 day b&w challenge. Day #6

Flotation machine for copper mining.

The Challenge

7 black & white images that represent an aspect of your life.
Present one image every day for 7 days.

1. No people.
2. No explanation.
3. Nominate someone every day. Although anyone can join in.
4. Use the tag #sevendaybnwchallenge as one of your five tags.