# Relationship history for MSHA mine 3303527

Current hierarchy: **Pappas George S → George S Pappas Mining → No 1 Mine (Strip)**

- 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:** George S Pappas Mining → No 1 Mine (Strip); 1976-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pappas George S → No 1 Mine (Strip); 1976-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pappas George S → George S Pappas Mining; 1976-10-01 to current/open; source msha-controller-operator-history