# Relationship history for MSHA mine 4202390

Current hierarchy: **Clay  Peck; Cole  Peck → Peck Rock and Products LLC → Extec Screen**

- 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:** Anthony T Peck → Extec Screen; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Thomas J Peck & Sons Inc → Extec Screen; 2004-08-18 to 2010-05-25; source msha-controller-operator-history
- **controller_controls_operator:** Anthony T Peck → Thomas J Peck & Sons Inc; 2004-08-18 to 2010-05-25; source msha-controller-operator-history
- **operator_operates_mine:** Peck Rock and Products LLC → Extec Screen; 2010-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clay  Peck et al → Extec Screen; 2010-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clay  Peck et al → Peck Rock and Products LLC; 2010-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cole  Peck et al → Peck Rock and Products LLC; 2010-05-26 to current/open; source msha-controller-operator-history