# Relationship history for MSHA mine 4105035

Current hierarchy: **Tike  Davis → True Limestone Operations Inc. → Hamby**

- 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:** True Limestone Operations Inc. → Hamby; 2013-08-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tike  Davis → Hamby; 2013-08-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tike  Davis → True Limestone Operations Inc.; 2013-08-21 to current/open; source msha-controller-operator-history