# Relationship history for MSHA mine 4604309

Current hierarchy: **Virgil B  La Rosa → Cheyenne Sales Company Inc → Capitol Tipple**

- 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:** Virgil B  La Rosa → Capitol Tipple; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Buckhannon Sales Company Inc → Capitol Tipple; 1974-01-01 to 1975-06-10; source msha-controller-operator-history
- **controller_controls_mine:** Martin Carl J → Capitol Tipple; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Carl J → Buckhannon Sales Company Inc; 1974-01-01 to 1975-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Capitol Tipple Coal Company → Capitol Tipple; 1975-06-11 to 1975-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Tomey James J → Capitol Tipple; 1975-06-11 to 1975-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Tomey James J → Capitol Tipple Coal Company; 1975-06-11 to 1975-10-01; source msha-controller-operator-history
- **operator_operates_mine:** Capitol Tipple Coal Company → Capitol Tipple; 1975-10-02 to 1980-02-19; source msha-controller-operator-history
- **controller_controls_mine:** Bragg Myron D → Capitol Tipple; 1975-10-02 to 1980-02-19; source msha-controller-operator-history
- **controller_controls_operator:** Bragg Myron D → Capitol Tipple Coal Company; 1975-10-02 to 1980-02-19; source msha-controller-operator-history
- **operator_operates_mine:** Cheyenne Sales Company Inc → Capitol Tipple; 1980-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Virgil B  La Rosa → Cheyenne Sales Company Inc; 1980-02-20 to current/open; source msha-controller-operator-history