# Relationship history for MSHA mine 3604809

Current hierarchy: **R/S Financial Corp → R/S Financial Corp → Joe Peck Strip 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Pecovich Joe Peck → Joe Peck Strip Mine; 1973-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Joe Peck Coal Company → Joe Peck Strip Mine; 1973-10-31 to 1977-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Pecovich Joe Peck → Joe Peck Coal Company; 1973-10-31 to 1977-03-15; source msha-controller-operator-history
- **operator_operates_mine:** R/S Financial Corp → Joe Peck Strip Mine; 1977-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** R/S Financial Corp → Joe Peck Strip Mine; 1977-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R/S Financial Corp → R/S Financial Corp; 1977-03-16 to current/open; source msha-controller-operator-history