# Relationship history for MSHA mine 4606668

Current hierarchy: **Poe Clarence → C & P Coal Company Inc → No 3**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Poe Clarence → No 3; 1975-05-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & P Coal Company Inc → No 3; 1983-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Poe Clarence → C & P Coal Company Inc; 1983-06-01 to current/open; source msha-controller-operator-history