# Relationship history for MSHA mine 1503393

Current hierarchy: **Tony Carlis  Mahon → Solar Complex Inc → Tipple**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Darby K Coal Company Inc → Tipple; 1950-01-01 to 1975-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Combs George → Tipple; 1950-01-01 to 1975-07-08; source msha-controller-operator-history
- **controller_controls_operator:** Combs George → Darby K Coal Company Inc; 1950-01-01 to 1975-07-08; source msha-controller-operator-history
- **operator_operates_mine:** Darby K Coal Company Inc → Tipple; 1975-07-09 to 1977-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Mayfield Emory L → Tipple; 1975-07-09 to 1977-09-13; source msha-controller-operator-history
- **controller_controls_operator:** Mayfield Emory L → Darby K Coal Company Inc; 1975-07-09 to 1977-09-13; source msha-controller-operator-history
- **operator_operates_mine:** Tway Coal Sales Company → Tipple; 1977-09-14 to 1985-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Wilson Rodney → Tipple; 1977-09-14 to 1985-09-13; source msha-controller-operator-history
- **controller_controls_operator:** Wilson Rodney → Tway Coal Sales Company; 1977-09-14 to 1985-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Tony Carlis  Mahon → Tipple; 1985-05-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Solar Complex Inc → Tipple; 1985-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tony Carlis  Mahon → Solar Complex Inc; 1985-09-14 to current/open; source msha-controller-operator-history