# Relationship history for MSHA mine 4605290

Current hierarchy: **Southern Edgar → Paul Harrold Inc → Charlie No 1 Mine**

- 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:** Southern Edgar → Charlie No 1 Mine; 1974-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paul Harrold Inc → Charlie No 1 Mine; 1976-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Southern Edgar → Paul Harrold Inc; 1976-05-29 to current/open; source msha-controller-operator-history