# Relationship history for MSHA mine 2301483

Current hierarchy: **American Industries & Resources Corp → S & S Realty Company Inc → S & S Mining #1 Strip**

- 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:** Circle G Coal Company → S & S Mining #1 Strip; 1976-01-01 to 1977-11-01; source msha-controller-operator-history
- **controller_controls_mine:** Guilford Floyd & Phil → S & S Mining #1 Strip; 1976-01-01 to 1977-11-01; source msha-controller-operator-history
- **controller_controls_operator:** Guilford Floyd & Phil → Circle G Coal Company; 1976-01-01 to 1977-11-01; source msha-controller-operator-history
- **operator_operates_mine:** S & S Realty Company Inc → S & S Mining #1 Strip; 1977-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** American Industries & Resources Corp → S & S Mining #1 Strip; 1977-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** American Industries & Resources Corp → S & S Realty Company Inc; 1977-11-02 to current/open; source msha-controller-operator-history
