# Relationship history for MSHA mine 0201510

Current hierarchy: **Stanley  Novak → Madison Granite Supply Inc → MADISON GRANITE 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:** Madison Granite Company → MADISON GRANITE PIT; 1950-01-01 to 1982-08-22; source msha-controller-operator-history
- **controller_controls_mine:** P  Madison → MADISON GRANITE PIT; 1950-01-01 to 1982-08-22; source msha-controller-operator-history
- **controller_controls_operator:** P  Madison → Madison Granite Company; 1950-01-01 to 1982-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Madison Granite Supply Inc → MADISON GRANITE PIT; 1982-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stanley  Novak → MADISON GRANITE PIT; 1982-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanley  Novak → Madison Granite Supply Inc; 1982-08-23 to current/open; source msha-controller-operator-history