# Relationship history for MSHA mine 4406182

Current hierarchy: **K Dale  Tolliver → Stanleytown Mining Inc → No 2**

- 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:** Richard G  Preservati II → No 2; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Preservati Construction Company Inc → No 2; 1985-02-01 to 1986-01-06; source msha-controller-operator-history
- **controller_controls_operator:** Richard G  Preservati II → Preservati Construction Company Inc; 1985-02-01 to 1986-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Gaylord Inc → No 2; 1986-01-07 to 1986-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Caffrey John E → No 2; 1986-01-07 to 1986-07-01; source msha-controller-operator-history
- **controller_controls_operator:** Caffrey John E → Gaylord Inc; 1986-01-07 to 1986-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Stanleytown Mining Inc → No 2; 1986-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** K Dale  Tolliver et al → No 2; 1986-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** K Dale  Tolliver et al → Stanleytown Mining Inc; 1986-07-02 to current/open; source msha-controller-operator-history