# Relationship history for MSHA mine 4103076

Current hierarchy: **Ricks G G → Jagoe-Public Company → Cpx-2 (Portable Crusher)**

- 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:** Ricks G G → Cpx-2 (Portable Crusher); 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jagoe-Public Company → Cpx-2 (Portable Crusher); 1981-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ricks G G → Jagoe-Public Company; 1981-05-01 to current/open; source msha-controller-operator-history