# Relationship history for MSHA mine 3607103

Current hierarchy: **Michael G  Faleski → Dupont Anthracite Inc → Alden Strip #1**

- 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:** Vincent  Kassa → Alden Strip #1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Linde Enterprises Inc → Alden Strip #1; 1981-03-01 to 1985-03-06; source msha-controller-operator-history
- **controller_controls_mine:** Linde Eric R → Alden Strip #1; 1981-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Linde Eric R → Linde Enterprises Inc; 1981-03-01 to 1985-03-06; source msha-controller-operator-history
- **operator_operates_mine:** Silverbrook Anthracite Inc → Alden Strip #1; 1985-03-07 to 1985-09-09; source msha-controller-operator-history
- **controller_controls_operator:** Vincent  Kassa → Silverbrook Anthracite Inc; 1985-03-07 to 1985-09-09; source msha-controller-operator-history
- **operator_operates_mine:** Dupont Anthracite Inc → Alden Strip #1; 1985-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael G  Faleski → Alden Strip #1; 1985-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael G  Faleski → Dupont Anthracite Inc; 1985-09-10 to current/open; source msha-controller-operator-history