# Relationship history for MSHA mine 3601681

Current hierarchy: **Anthracite Processing Co Inc → Anthracite Processing Co Inc → Forest City Breaker**

- 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:** C & P Coal Company → Forest City Breaker; 1950-01-01 to 1975-08-05; source msha-controller-operator-history
- **controller_controls_mine:** Coccodrilli Arthur → Forest City Breaker; 1950-01-01 to 1975-08-05; source msha-controller-operator-history
- **controller_controls_operator:** Coccodrilli Arthur → C & P Coal Company; 1950-01-01 to 1975-08-05; source msha-controller-operator-history
- **controller_controls_mine:** Martinelli Matthew → Forest City Breaker; 1974-08-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M Martinelli Co → Forest City Breaker; 1975-08-06 to 1976-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Martinelli Matthew → M Martinelli Co; 1975-08-06 to 1976-01-14; source msha-controller-operator-history
- **operator_operates_mine:** Anthracite Processing Co Inc → Forest City Breaker; 1976-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Anthracite Processing Co Inc → Forest City Breaker; 1976-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthracite Processing Co Inc → Anthracite Processing Co Inc; 1976-01-15 to current/open; source msha-controller-operator-history