# Relationship history for MSHA mine 1700843

Current hierarchy: **R J Finlay & Co → RJF Morin Brick LLC → RJF Morin Brick LLC**

- 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:** Morin Brick Company → RJF Morin Brick LLC; 1950-01-01 to 2009-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Morin Brick → RJF Morin Brick LLC; 2008-10-06 to 2011-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Morin Brick Company → Morin Brick; 2008-10-06 to 2009-03-26; source msha-controller-operator-history
- **controller_controls_mine:** R J Finlay & Co → RJF Morin Brick LLC; 2009-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R J Finlay & Co → Morin Brick; 2009-03-27 to 2011-08-24; source msha-controller-operator-history
- **operator_operates_mine:** RJF Morin Brick LLC → RJF Morin Brick LLC; 2011-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** R J Finlay & Co → RJF Morin Brick LLC; 2011-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R J Finlay & Co → RJF Morin Brick LLC; 2011-08-25 to current/open; source msha-controller-operator-history