# Relationship history for MSHA mine 1102890

Current hierarchy: **Elton A  Wagner II → Fine Grind Lime Inc → FINE GRIND LIME CO.**

- 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:** Fine Grind Lime Inc → FINE GRIND LIME CO.; 1989-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elton A  Wagner II → FINE GRIND LIME CO.; 1989-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elton A  Wagner II → Fine Grind Lime Inc; 1989-11-01 to current/open; source msha-controller-operator-history