# Relationship history for MSHA mine 4608515

Current hierarchy: **Richard H  Abraham → Talon Resources Inc → Coalburg No 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Richard H  Abraham et al → Coalburg No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Talon Resources Inc → Coalburg No 1; 1995-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard H  Abraham et al → Talon Resources Inc; 1995-08-01 to current/open; source msha-controller-operator-history