# Relationship history for MSHA mine 1512557

Current hierarchy: **Asher W Forrest → Asher-Robinson Enterprise Inc → Mine #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

- **operator_operates_mine:** Asher-Robinson Enterprise Inc → Mine #2; 1980-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Asher W Forrest Et Al → Mine #2; 1980-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Asher W Forrest Et Al → Asher-Robinson Enterprise Inc; 1980-10-01 to current/open; source msha-controller-operator-history