# Relationship history for MSHA mine 3001663

Current hierarchy: **Peter  Reale; John P  Reale → Crown Point Equipment & Supply → SAWYER'S PIT**

- 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:** Sawyers Sand & Gravel → SAWYER'S PIT; 1950-01-01 to 2022-05-17; source msha-controller-operator-history
- **controller_controls_mine:** Ralph W  Sawyer → SAWYER'S PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph W  Sawyer → Sawyers Sand & Gravel; 1950-01-01 to 2022-05-17; source msha-controller-operator-history
- **controller_controls_mine:** John P  Reale et al → SAWYER'S PIT; 2021-04-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Crown Point Equipment & Supply → SAWYER'S PIT; 2022-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John P  Reale et al → Crown Point Equipment & Supply; 2022-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter  Reale et al → Crown Point Equipment & Supply; 2022-05-18 to current/open; source msha-controller-operator-history