# Relationship history for MSHA mine 4103988

Current hierarchy: **Joe  Jenschke → Edmund Jenschke Inc → JENSCHKE 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:** Edmund Jenschke Inc → JENSCHKE PIT; 1998-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edmund  Jenschke → JENSCHKE PIT; 1998-03-01 to 2018-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Edmund  Jenschke → Edmund Jenschke Inc; 1998-03-01 to 2018-11-04; source msha-controller-operator-history
- **controller_controls_mine:** Joe  Jenschke → JENSCHKE PIT; 2018-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Jenschke → Edmund Jenschke Inc; 2018-11-05 to current/open; source msha-controller-operator-history