# Relationship history for MSHA mine 4701478

Current hierarchy: **Kurt  Bechthold → Payne & Dolan Inc → Haen Pit Or Haen Quarry**

- 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

- **operator_operates_mine:** Madison Stone Company → Haen Pit Or Haen Quarry; 1950-01-01 to 1982-11-01; source msha-controller-operator-history
- **controller_controls_mine:** Rein-Schultz & Dahl Of Illinois Inc → Haen Pit Or Haen Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rein-Schultz & Dahl Of Illinois Inc → Madison Stone Company; 1950-01-01 to 1982-11-01; source msha-controller-operator-history
- **controller_controls_mine:** Kurt  Bechthold et al → Haen Pit Or Haen Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Payne & Dolan Inc → Haen Pit Or Haen Quarry; 1982-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kurt  Bechthold et al → Payne & Dolan Inc; 1982-11-02 to current/open; source msha-controller-operator-history