# Relationship history for MSHA mine 0404855

Current hierarchy: **Kevin L  Anthony → Vern Anthony Gunite Inc → Sand Pit**

- 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:** Vern Anthony Gunite Inc → Sand Pit; 1986-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Vernon L  Anthony Jr → Sand Pit; 1986-11-01 to 2012-10-08; source msha-controller-operator-history
- **controller_controls_operator:** Vernon L  Anthony Jr → Vern Anthony Gunite Inc; 1986-11-01 to 2012-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Kevin L  Anthony → Sand Pit; 2012-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin L  Anthony → Vern Anthony Gunite Inc; 2012-10-09 to current/open; source msha-controller-operator-history