# Relationship history for MSHA mine 0301864

Current hierarchy: **Robert C  Kuhn → Robert Kuhn → F. A.  I**

- 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:** Robert C  Kuhn → F. A.  I; 2000-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Robert Kuhn → F. A.  I; 2002-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert C  Kuhn → Robert Kuhn; 2002-06-06 to current/open; source msha-controller-operator-history