# Relationship history for MSHA mine 4703129

Current hierarchy: **David  Niebler → Artistic Stone Inc. → Artistic Stone Inc.**

- 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:** J D Lannon Stone Company → Artistic Stone Inc.; 1998-01-01 to 2002-07-04; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Dudovich → Artistic Stone Inc.; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Dudovich → J D Lannon Stone Company; 1998-01-01 to 2002-07-04; source msha-controller-operator-history
- **operator_operates_mine:** Artistic Stone Inc. → Artistic Stone Inc.; 2002-07-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Niebler → Artistic Stone Inc.; 2002-07-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Niebler → Artistic Stone Inc.; 2002-07-05 to current/open; source msha-controller-operator-history