# Relationship history for MSHA mine 1513860

Current hierarchy: **Sams Jerry L → Blue Max Mining Inc → No 1**

- 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

- **controller_controls_mine:** Sams Jerry L → No 1; 1982-07-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A F I Inc → No 1; 1982-12-01 to 1983-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Balena Joseph → No 1; 1982-12-01 to 1983-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Balena Joseph → A F I Inc; 1982-12-01 to 1983-08-02; source msha-controller-operator-history
- **operator_operates_mine:** Blue Max Mining Inc → No 1; 1983-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sams Jerry L → Blue Max Mining Inc; 1983-08-03 to current/open; source msha-controller-operator-history