# Relationship history for MSHA mine 0402969

Current hierarchy: **Riley Jack → Telegraph Mining Company Inc → Telegraph 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** V Huffman → Telegraph Mine; 1950-01-01 to 1979-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Huffman V → Telegraph Mine; 1950-01-01 to 1979-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Huffman V → V Huffman; 1950-01-01 to 1979-10-17; source msha-controller-operator-history
- **operator_operates_mine:** V O R Explorations Inc → Telegraph Mine; 1979-10-18 to 1985-07-02; source msha-controller-operator-history
- **controller_controls_mine:** Flame Petro Mineral Corp & Unity Gold Inc → Telegraph Mine; 1979-10-18 to 1985-07-02; source msha-controller-operator-history
- **controller_controls_operator:** Flame Petro Mineral Corp & Unity Gold Inc → V O R Explorations Inc; 1979-10-18 to 1985-07-02; source msha-controller-operator-history
- **operator_operates_mine:** Telegraph Mining Company Inc → Telegraph Mine; 1985-07-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Riley Jack → Telegraph Mine; 1985-07-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Riley Jack → Telegraph Mining Company Inc; 1985-07-03 to current/open; source msha-controller-operator-history