# Relationship history for MSHA mine 4606038

Current hierarchy: **Bassell James → Treyco Inc → Deep Mine #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:** Bassell James → Deep Mine #1; 1978-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Treyco Inc → Deep Mine #1; 1979-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bassell James → Treyco Inc; 1979-07-01 to current/open; source msha-controller-operator-history