# Relationship history for MSHA mine 4002554

Current hierarchy: **Bowlin Freddie → Black Face Inc → #1**

- 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

- **controller_controls_mine:** Bowlin Charlie Et Al → #1; 1978-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & F Corp → #1; 1979-10-01 to 1983-08-21; source msha-controller-operator-history
- **controller_controls_operator:** Bowlin Charlie Et Al → C & F Corp; 1979-10-01 to 1983-08-21; source msha-controller-operator-history
- **operator_operates_mine:** Black Face Inc → #1; 1983-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bowlin Freddie → #1; 1983-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bowlin Freddie → Black Face Inc; 1983-08-22 to current/open; source msha-controller-operator-history