# Relationship history for MSHA mine 1502332

Current hierarchy: **Breeding Vance → V J Coal Company → No 2 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Banks & Sons Coal Company → No 2 Mine; 1950-01-01 to 1971-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Banks Raymond & George → No 2 Mine; 1950-01-01 to 1971-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Banks Raymond & George → Banks & Sons Coal Company; 1950-01-01 to 1971-06-30; source msha-controller-operator-history
- **operator_operates_mine:** V J Coal Company → No 2 Mine; 1971-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Breeding Vance → No 2 Mine; 1971-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Breeding Vance → V J Coal Company; 1971-07-01 to current/open; source msha-controller-operator-history